超前自学网20春学期（1709、1803、1809、1903、1909、2003）《线性代数》在线作业
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<img alt=”” width=”301″ height=”32″ src=”http://file.open.com.cn/ItemDB/60124/79d68eec-13c7-4d4a-b6a3-01b9c10d76a3/20125316396218.png” />
A:<img alt=”” width=”87″ height=”75″ src=”http://file.open.com.cn/ItemDB/60124/79d68eec-13c7-4d4a-b6a3-01b9c10d76a3/201253163917781.png” />
B:<img alt=”” width=”85″ height=”75″ src=”http://file.open.com.cn/ItemDB/60124/79d68eec-13c7-4d4a-b6a3-01b9c10d76a3/20125316393132.png” />
C:<img alt=”” width=”86″ height=”73″ src=”http://file.open.com.cn/ItemDB/60124/79d68eec-13c7-4d4a-b6a3-01b9c10d76a3/201253163941844.png” />
D:<img width=”83″ height=”74″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/79d68eec-13c7-4d4a-b6a3-01b9c10d76a3/201254163940996.png” />
<img alt=”” width=”295″ height=”32″ src=”http://file.open.com.cn/ItemDB/60124/4e895dc9-f5c2-402e-845d-ef20536dd404/20125492513376.png” />
A:<img alt=”” width=”124″ height=”24″ src=”http://file.open.com.cn/ItemDB/60124/4e895dc9-f5c2-402e-845d-ef20536dd404/20125492521766.png” />
B:<img width=”69″ height=”26″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/4e895dc9-f5c2-402e-845d-ef20536dd404/201254165140849.png” />
C:<img alt=”” width=”261″ height=”22″ src=”http://file.open.com.cn/ItemDB/60124/4e895dc9-f5c2-402e-845d-ef20536dd404/20125492553546.png” />
D:<img alt=”” width=”390″ height=”26″ src=”http://file.open.com.cn/ItemDB/60124/4e895dc9-f5c2-402e-845d-ef20536dd404/2012549263561.png” />
<img alt=”” width=”540″ height=”115″ src=”http://file.open.com.cn/ItemDB/60124/1e62c821-29d5-4b00-9b32-daf84423f2ba/201253164739532.png” />
A:<img width=”95″ height=”18″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/1e62c821-29d5-4b00-9b32-daf84423f2ba/20125416403411.png” />
B:<img alt=”” width=”175″ height=”23″ src=”http://file.open.com.cn/ItemDB/60124/1e62c821-29d5-4b00-9b32-daf84423f2ba/20125316487439.png” />
C:<img alt=”” width=”230″ height=”24″ src=”http://file.open.com.cn/ItemDB/60124/1e62c821-29d5-4b00-9b32-daf84423f2ba/201253164818986.png” />
D:<img alt=”” width=”159″ height=”22″ src=”http://file.open.com.cn/ItemDB/60124/1e62c821-29d5-4b00-9b32-daf84423f2ba/201253164846924.png” />
<img width=”449″ height=”78″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/c5759f37-4a4c-4c50-a0b1-b3faba1ea7e0/2012549832990.png” />
A:线性相关
B:线性无关
<img alt=”” width=”511″ height=”133″ src=”http://file.open.com.cn/ItemDB/60124/8d7ea47e-aff5-49f9-8b5e-84531a034183/201253165742285.png” />
A:<img width=”131″ height=”29″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/8d7ea47e-aff5-49f9-8b5e-84531a034183/201254164153588.png” />
B:<img alt=”” width=”142″ height=”26″ src=”http://file.open.com.cn/ItemDB/60124/8d7ea47e-aff5-49f9-8b5e-84531a034183/201253165853225.png” />
C:<img alt=”” width=”135″ height=”26″ src=”http://file.open.com.cn/ItemDB/60124/8d7ea47e-aff5-49f9-8b5e-84531a034183/20125316595632.png” />
D:<img alt=”” width=”56″ height=”24″ src=”http://file.open.com.cn/ItemDB/60124/8d7ea47e-aff5-49f9-8b5e-84531a034183/201253165917929.png” />
<img alt=”” width=”368″ height=”41″ src=”http://file.open.com.cn/ItemDB/60124/c9857f3d-1172-49c3-9509-dd6d5ca80e67/201253151719177.png” />
A:<p>1</p>
B:<p>-1</p>
C:<p>±1</p>
D:0
<img alt=”” width=”539″ height=”30″ src=”http://file.open.com.cn/ItemDB/60124/f2fff7ed-b016-4e4b-ae0f-d051a3035629/20125491554483.png” />
A:<img alt=”” width=”77″ height=”28″ src=”http://file.open.com.cn/ItemDB/60124/f2fff7ed-b016-4e4b-ae0f-d051a3035629/2012549166357.png” />
B:<img alt=”” width=”46″ height=”25″ src=”http://file.open.com.cn/ItemDB/60124/f2fff7ed-b016-4e4b-ae0f-d051a3035629/20125491616107.png” />
C:<img width=”28″ height=”25″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/f2fff7ed-b016-4e4b-ae0f-d051a3035629/201254165013878.png” />
D:<img alt=”” width=”30″ height=”25″ src=”http://file.open.com.cn/ItemDB/60124/f2fff7ed-b016-4e4b-ae0f-d051a3035629/20125491641309.png” />
<img alt=”” width=”429″ height=”70″ src=”http://file.open.com.cn/ItemDB/60124/fe5c68ac-077a-4b15-8867-640dd4d7f184/20125485725899.png” />
A:<img alt=”” width=”78″ height=”24″ src=”http://file.open.com.cn/ItemDB/60124/fe5c68ac-077a-4b15-8867-640dd4d7f184/20125485736617.png” />
B:<img width=”78″ height=”23″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/fe5c68ac-077a-4b15-8867-640dd4d7f184/20125416477233.png” />
C:<img alt=”” width=”72″ height=”21″ src=”http://file.open.com.cn/ItemDB/60124/fe5c68ac-077a-4b15-8867-640dd4d7f184/20125485755741.png” />
D:<img alt=”” width=”71″ height=”25″ src=”http://file.open.com.cn/ItemDB/60124/fe5c68ac-077a-4b15-8867-640dd4d7f184/2012548584631.png” />
<img alt=”” width=”416″ height=”113″ src=”http://file.open.com.cn/ItemDB/60124/5bfc6734-d615-4221-938a-301c290e7500/2012548568794.png” />
A:<img alt=”” width=”62″ height=”24″ src=”http://file.open.com.cn/ItemDB/60124/5bfc6734-d615-4221-938a-301c290e7500/20125485620106.png” />
B:<img alt=”” width=”55″ height=”22″ src=”http://file.open.com.cn/ItemDB/60124/5bfc6734-d615-4221-938a-301c290e7500/20125485629683.png” />
C:<img width=”127″ height=”23″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/5bfc6734-d615-4221-938a-301c290e7500/201254164654842.png” />
D:<img alt=”” width=”57″ height=”23″ src=”http://file.open.com.cn/ItemDB/60124/5bfc6734-d615-4221-938a-301c290e7500/20125485648385.png” />
<img width=”487″ height=”77″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/597fd27a-9fc2-487e-9fd7-ef4185f4bf1d/201253152841302.png” />
A:线性相关
B:线性无关
<img alt=”” width=”344″ height=”65″ src=”http://file.open.com.cn/ItemDB/60124/3497c493-ca55-4fa0-b820-696274900b6c/201253154157171.png” />
A:<img alt=”” width=”70″ height=”58″ src=”http://file.open.com.cn/ItemDB/60124/3497c493-ca55-4fa0-b820-696274900b6c/20125315429531.png” />
B:<img alt=”” width=”71″ height=”60″ src=”http://file.open.com.cn/ItemDB/60124/3497c493-ca55-4fa0-b820-696274900b6c/201253154223594.png” />
C:<img alt=”” width=”71″ height=”61″ src=”http://file.open.com.cn/ItemDB/60124/3497c493-ca55-4fa0-b820-696274900b6c/201253154236907.png” />
D:<p><img width=”69″ height=”59″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/3497c493-ca55-4fa0-b820-696274900b6c/201254163159482.png” /></p>
<img alt=”” width=”488″ height=”97″ src=”http://file.open.com.cn/ItemDB/60124/024c0730-0162-467e-b17d-516ba08eb358/20125315526534.png” />
A:<img width=”85″ height=”72″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/024c0730-0162-467e-b17d-516ba08eb358/20125416333100.png” />
B: <img alt=”” width=”91″ height=”78″ src=”http://file.open.com.cn/ItemDB/60124/024c0730-0162-467e-b17d-516ba08eb358/20125315523698.png” />
C:<img alt=”” width=”94″ height=”76″ src=”http://file.open.com.cn/ItemDB/60124/024c0730-0162-467e-b17d-516ba08eb358/201253155247411.png” />
D:<img alt=”” width=”97″ height=”77″ src=”http://file.open.com.cn/ItemDB/60124/024c0730-0162-467e-b17d-516ba08eb358/20125315530474.png” />
<img alt=”” width=”131″ height=”37″ src=”http://file.open.com.cn/ItemDB/60124/fafb9aa8-5cb6-4b60-b8c9-6920eb70acdd/2012531552145.png” />
A:<img alt=”” width=”61″ height=”32″ src=”http://file.open.com.cn/ItemDB/60124/fafb9aa8-5cb6-4b60-b8c9-6920eb70acdd/20125315514816.png” />
B:<img width=”53″ height=”24″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/fafb9aa8-5cb6-4b60-b8c9-6920eb70acdd/201254162415502.png” />
<img alt=”” width=”505″ height=”109″ src=”http://file.open.com.cn/ItemDB/60124/b41c82c2-5f96-403f-8aad-33dbfdf8ad8d/20125485052763.png” />
A:<img width=”158″ height=”115″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/b41c82c2-5f96-403f-8aad-33dbfdf8ad8d/20125416461113.png” />
B:<img alt=”” width=”149″ height=”117″ src=”http://file.open.com.cn/ItemDB/60124/b41c82c2-5f96-403f-8aad-33dbfdf8ad8d/20125485117418.png” />
<img alt=”” width=”155″ height=”105″ src=”http://file.open.com.cn/ItemDB/60124/5c7c514b-f5f8-40d7-ae9b-bf7c6ce113a1/20125317831884.png” />
A:<img width=”76″ height=”101″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/5c7c514b-f5f8-40d7-ae9b-bf7c6ce113a1/201254164333246.png” />
B:<img alt=”” width=”99″ height=”98″ src=”http://file.open.com.cn/ItemDB/60124/5c7c514b-f5f8-40d7-ae9b-bf7c6ce113a1/20125317859198.png” />
<img alt=”” width=”477″ height=”65″ src=”http://file.open.com.cn/ItemDB/60124/cf015867-63be-48ef-ae94-7e64712ce605/20125317233732.png” />
A:<img alt=”” width=”150″ height=”22″ src=”http://file.open.com.cn/ItemDB/60124/cf015867-63be-48ef-ae94-7e64712ce605/20125317349953.png” />
B:<img width=”160″ height=”20″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/cf015867-63be-48ef-ae94-7e64712ce605/201254164247151.png” />
<img width=”537″ height=”154″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/5d0ae671-c3cd-4017-81dc-322b7ef7718c/20125484835239.png” />
A:1
B:2
C:3
D:4
<img alt=”” width=”291″ height=”108″ src=”http://file.open.com.cn/ItemDB/60124/4c3a2634-1de5-4e68-a7f1-8237e16a64cd/201253164333946.png” />
A:<img alt=”” width=”108″ height=”22″ src=”http://file.open.com.cn/ItemDB/60124/4c3a2634-1de5-4e68-a7f1-8237e16a64cd/201253164345743.png” />
B:<img alt=”” width=”94″ height=”20″ src=”http://file.open.com.cn/ItemDB/60124/4c3a2634-1de5-4e68-a7f1-8237e16a64cd/20125316441806.png” />
C:<img width=”238″ height=”24″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/4c3a2634-1de5-4e68-a7f1-8237e16a64cd/2012541640727.png” />
D:<img alt=”” width=”176″ height=”24″ src=”http://file.open.com.cn/ItemDB/60124/4c3a2634-1de5-4e68-a7f1-8237e16a64cd/201253164440791.png” />
<img alt=”” width=”535″ height=”112″ src=”http://file.open.com.cn/ItemDB/60124/bec0d9df-4be5-42d7-a223-32bf1f23b231/201253165140211.png” />
A:<img alt=”” width=”52″ height=”24″ src=”http://file.open.com.cn/ItemDB/60124/bec0d9df-4be5-42d7-a223-32bf1f23b231/201253165153102.png” />
B:<img alt=”” width=”139″ height=”27″ src=”http://file.open.com.cn/ItemDB/60124/bec0d9df-4be5-42d7-a223-32bf1f23b231/20125316524181.png” />
C:<img alt=”” width=”143″ height=”26″ src=”http://file.open.com.cn/ItemDB/60124/bec0d9df-4be5-42d7-a223-32bf1f23b231/201253165213478.png” />
D:<img width=”142″ height=”26″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/bec0d9df-4be5-42d7-a223-32bf1f23b231/20125416411173.png” />
<img alt=”” width=”490″ height=”76″ src=”http://file.open.com.cn/ItemDB/60124/2871ff98-b36d-44d2-b005-c9c4930e4ec4/201253152223495.png” />
A:<img width=”209″ height=”31″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/2871ff98-b36d-44d2-b005-c9c4930e4ec4/2012541627164.png” />
B:<img alt=”” width=”214″ height=”35″ src=”http://file.open.com.cn/ItemDB/60124/2871ff98-b36d-44d2-b005-c9c4930e4ec4/201253152246246.png” />
<img width=”496″ height=”30″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/15e5fdae-f250-48dd-921e-87ec63494d2e/20125492328553.png” />
A:充分必要条件
B:充分而非必要条件
C:必要而非充分条件
D:既非充分也非必要条件
<img alt=”” width=”536″ height=”74″ src=”http://file.open.com.cn/ItemDB/60124/1d757ab5-561f-4acc-8c0e-db274023cc1e/201253144517794.png” />
A:<img alt=”” width=”221″ height=”51″ src=”http://file.open.com.cn/ItemDB/60124/1d757ab5-561f-4acc-8c0e-db274023cc1e/201253144555827.png” />
B:<img width=”297″ height=”52″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/1d757ab5-561f-4acc-8c0e-db274023cc1e/2012541622871.png” />
C:<img alt=”” width=”207″ height=”40″ src=”http://file.open.com.cn/ItemDB/60124/1d757ab5-561f-4acc-8c0e-db274023cc1e/201253144623702.png” />
D:<img alt=”” width=”301″ height=”42″ src=”http://file.open.com.cn/ItemDB/60124/1d757ab5-561f-4acc-8c0e-db274023cc1e/201253144632515.png” />
<img alt=”” width=”528″ height=”38″ src=”http://file.open.com.cn/ItemDB/60124/82b6a69d-d511-4e13-8bd7-20d0846cfe5e/201254902610.png” />
A:<img alt=”” width=”451″ height=”29″ src=”http://file.open.com.cn/ItemDB/60124/82b6a69d-d511-4e13-8bd7-20d0846cfe5e/2012549012812.png” />
B:<img width=”409″ height=”68″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/82b6a69d-d511-4e13-8bd7-20d0846cfe5e/20125416474046.png” />
C:<img alt=”” width=”455″ height=”65″ src=”http://file.open.com.cn/ItemDB/60124/82b6a69d-d511-4e13-8bd7-20d0846cfe5e/2012549031968.png” />
D:<img alt=”” width=”427″ height=”27″ src=”http://file.open.com.cn/ItemDB/60124/82b6a69d-d511-4e13-8bd7-20d0846cfe5e/2012549045904.png” />
<p><font face=”Arial”>用数<em>k</em>去乘行列式等于用<em>k</em>去乘（ ）</font></p>
A:<p><font face=”Arial”>行列式的所有元素</font></p>
B:<p><font face=”Arial”>行列式的某一行的所有元素</font></p>
<img alt=”” width=”416″ height=”35″ src=”http://file.open.com.cn/ItemDB/60124/c6d5e12b-990a-4327-a13f-1f1cf81c3d59/2012531632533.png” />
A:<img width=”78″ height=”42″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/c6d5e12b-990a-4327-a13f-1f1cf81c3d59/201254163851106.png” />
B:<img alt=”” width=”81″ height=”43″ src=”http://file.open.com.cn/ItemDB/60124/c6d5e12b-990a-4327-a13f-1f1cf81c3d59/201253163330708.png” />
C:<img alt=”” width=”62″ height=”28″ src=”http://file.open.com.cn/ItemDB/60124/c6d5e12b-990a-4327-a13f-1f1cf81c3d59/201253163344192.png” />
D:<img alt=”” width=”54″ height=”27″ src=”http://file.open.com.cn/ItemDB/60124/c6d5e12b-990a-4327-a13f-1f1cf81c3d59/201253163357146.png” />
<img alt=”” width=”356″ height=”82″ src=”http://file.open.com.cn/ItemDB/60124/f6b6223a-436d-4a8a-8bea-ef547531a996/20125317450924.png” />
A:<img width=”107″ height=”23″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/f6b6223a-436d-4a8a-8bea-ef547531a996/201254164258948.png” />
B:<img alt=”” width=”105″ height=”22″ src=”http://file.open.com.cn/ItemDB/60124/f6b6223a-436d-4a8a-8bea-ef547531a996/20125317640771.png” />
<img alt=”” width=”483″ height=”37″ src=”http://file.open.com.cn/ItemDB/60124/7c2e915c-2bac-4aa6-96b3-a9b0c652ca24/201253163418412.png” />
A:<img width=”64″ height=”22″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/7c2e915c-2bac-4aa6-96b3-a9b0c652ca24/20125416393637.png” />
B:<img alt=”” width=”67″ height=”23″ src=”http://file.open.com.cn/ItemDB/60124/7c2e915c-2bac-4aa6-96b3-a9b0c652ca24/201253163442491.png” />
C:<img alt=”” width=”53″ height=”25″ src=”http://file.open.com.cn/ItemDB/60124/7c2e915c-2bac-4aa6-96b3-a9b0c652ca24/201253163453366.png” />
D:<img alt=”” width=”47″ height=”23″ src=”http://file.open.com.cn/ItemDB/60124/7c2e915c-2bac-4aa6-96b3-a9b0c652ca24/20125316354820.png” />
<img alt=”” width=”386″ height=”173″ src=”http://file.open.com.cn/ItemDB/60124/bf24ba50-b635-4501-b62f-ec3a36ace937/201253165032912.png” />
A:<img alt=”” width=”28″ height=”18″ src=”http://file.open.com.cn/ItemDB/60124/bf24ba50-b635-4501-b62f-ec3a36ace937/201253165043819.png” />
B:<img alt=”” width=”28″ height=”24″ src=”http://file.open.com.cn/ItemDB/60124/bf24ba50-b635-4501-b62f-ec3a36ace937/201253165054397.png” />
C:<img width=”36″ height=”25″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/bf24ba50-b635-4501-b62f-ec3a36ace937/201254164057495.png” />
D:<img alt=”” width=”48″ height=”24″ src=”http://file.open.com.cn/ItemDB/60124/bf24ba50-b635-4501-b62f-ec3a36ace937/201253165116835.png” />
<img alt=”” width=”507″ height=”148″ src=”http://file.open.com.cn/ItemDB/60124/0cd61b89-2261-42e0-ab07-a7e791c42ec8/201253163721668.png” />
A:<img width=”15″ height=”19″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/0cd61b89-2261-42e0-ab07-a7e791c42ec8/201254163924855.png” />
B:<img alt=”” width=”50″ height=”25″ src=”http://file.open.com.cn/ItemDB/60124/0cd61b89-2261-42e0-ab07-a7e791c42ec8/201253163751106.png” />
C:<img alt=”” width=”25″ height=”26″ src=”http://file.open.com.cn/ItemDB/60124/0cd61b89-2261-42e0-ab07-a7e791c42ec8/20125316386810.png” />
D:<img alt=”” width=”26″ height=”25″ src=”http://file.open.com.cn/ItemDB/60124/0cd61b89-2261-42e0-ab07-a7e791c42ec8/201253163819139.png” />
<img alt=”” width=”325″ height=”108″ src=”http://file.open.com.cn/ItemDB/60124/7e12b1f2-2cbc-4711-b495-779d1d665bc3/20125317226363.png” />
A:<img width=”136″ height=”59″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/7e12b1f2-2cbc-4711-b495-779d1d665bc3/201254164459372.png” />
B:<img alt=”” width=”104″ height=”62″ src=”http://file.open.com.cn/ItemDB/60124/7e12b1f2-2cbc-4711-b495-779d1d665bc3/201253172226333.png” />
C:<img alt=”” width=”94″ height=”60″ src=”http://file.open.com.cn/ItemDB/60124/7e12b1f2-2cbc-4711-b495-779d1d665bc3/201253172725983.png” />
D:<img alt=”” width=”132″ height=”61″ src=”http://file.open.com.cn/ItemDB/60124/7e12b1f2-2cbc-4711-b495-779d1d665bc3/201253172737905.png” />
<img alt=”” width=”534″ height=”150″ src=”http://file.open.com.cn/ItemDB/60124/147d0844-f52a-4732-92cf-e0e6006b8ac4/20125491144199.png” />
A:<img alt=”” width=”124″ height=”25″ src=”http://file.open.com.cn/ItemDB/60124/147d0844-f52a-4732-92cf-e0e6006b8ac4/20125491154620.png” />
B:<img alt=”” width=”127″ height=”25″ src=”http://file.open.com.cn/ItemDB/60124/147d0844-f52a-4732-92cf-e0e6006b8ac4/2012549124245.png” />
C:<img width=”116″ height=”24″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/147d0844-f52a-4732-92cf-e0e6006b8ac4/20125416498549.png” />
D:<img alt=”” width=”115″ height=”24″ src=”http://file.open.com.cn/ItemDB/60124/147d0844-f52a-4732-92cf-e0e6006b8ac4/20125491224244.png” />
<img alt=”” width=”345″ height=”33″ src=”http://file.open.com.cn/ItemDB/60124/a2098081-877d-41a5-80e2-5bede11a84f9/2012531559532.png” />
A:<img alt=”” width=”175″ height=”32″ src=”http://file.open.com.cn/ItemDB/60124/a2098081-877d-41a5-80e2-5bede11a84f9/20125315592217.png” />
B:<img alt=”” width=”174″ height=”29″ src=”http://file.open.com.cn/ItemDB/60124/a2098081-877d-41a5-80e2-5bede11a84f9/201253155936627.png” />
C:<img width=”168″ height=”30″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/a2098081-877d-41a5-80e2-5bede11a84f9/201254163449963.png” />
D:<img alt=”” width=”164″ height=”28″ src=”http://file.open.com.cn/ItemDB/60124/a2098081-877d-41a5-80e2-5bede11a84f9/2012531604393.png” />
<img alt=”” width=”479″ height=”70″ src=”http://file.open.com.cn/ItemDB/60124/9854c4db-d1e1-46c9-a9a8-22dfca185a1a/201253154917669.png” />
A:<img alt=”” width=”166″ height=”64″ src=”http://file.open.com.cn/ItemDB/60124/9854c4db-d1e1-46c9-a9a8-22dfca185a1a/201253154933404.png” />
B:<img alt=”” width=”164″ height=”56″ src=”http://file.open.com.cn/ItemDB/60124/9854c4db-d1e1-46c9-a9a8-22dfca185a1a/201253154946670.png” />
C:<img width=”164″ height=”54″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/9854c4db-d1e1-46c9-a9a8-22dfca185a1a/20125416322126.png” />
D:<img alt=”” width=”172″ height=”57″ src=”http://file.open.com.cn/ItemDB/60124/9854c4db-d1e1-46c9-a9a8-22dfca185a1a/201253155014749.png” />
<img alt=”” width=”333″ height=”87″ src=”http://file.open.com.cn/ItemDB/60124/854fc1ad-fba4-4984-8ee9-4ac74e8c3b7a/201253162839964.png” />
A:<img width=”189″ height=”25″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/854fc1ad-fba4-4984-8ee9-4ac74e8c3b7a/201254163816262.png” />
B:<img alt=”” width=”192″ height=”31″ src=”http://file.open.com.cn/ItemDB/60124/79b343c7-c30e-482f-b22f-ebcaeeb60681/201253162931809.png” />
C:<img alt=”” width=”178″ height=”26″ src=”http://file.open.com.cn/ItemDB/60124/79b343c7-c30e-482f-b22f-ebcaeeb60681/201253162945669.png” />
D:<img alt=”” width=”170″ height=”25″ src=”http://file.open.com.cn/ItemDB/60124/79b343c7-c30e-482f-b22f-ebcaeeb60681/201253162959670.png” />
<img alt=”” width=”349″ height=”85″ src=”http://file.open.com.cn/ItemDB/60124/55e3478f-a5c0-4128-9ee6-5d87f2041179/201253164618326.png” />
A:<img alt=”” width=”19″ height=”22″ src=”http://file.open.com.cn/ItemDB/60124/55e3478f-a5c0-4128-9ee6-5d87f2041179/201253164634326.png” />
B:<img width=”15″ height=”20″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/55e3478f-a5c0-4128-9ee6-5d87f2041179/201254164022104.png” />
C:<img alt=”” width=”164″ height=”23″ src=”http://file.open.com.cn/ItemDB/60124/55e3478f-a5c0-4128-9ee6-5d87f2041179/20125316473905.png” />
D:<img alt=”” width=”24″ height=”24″ src=”http://file.open.com.cn/ItemDB/60124/55e3478f-a5c0-4128-9ee6-5d87f2041179/201253164716671.png” />
<img alt=”” width=”540″ height=”113″ src=”http://file.open.com.cn/ItemDB/60124/efb191c2-45f5-4573-b79a-98eb7f525a64/20125492754180.png” />
A:<img alt=”” width=”105″ height=”26″ src=”http://file.open.com.cn/ItemDB/60124/efb191c2-45f5-4573-b79a-98eb7f525a64/2012549285836.png” />
B:<img width=”98″ height=”31″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/efb191c2-45f5-4573-b79a-98eb7f525a64/201254165220179.png” />
C:<img alt=”” width=”105″ height=”28″ src=”http://file.open.com.cn/ItemDB/60124/efb191c2-45f5-4573-b79a-98eb7f525a64/20125492823710.png” />
D:<img alt=”” width=”61″ height=”28″ src=”http://file.open.com.cn/ItemDB/60124/efb191c2-45f5-4573-b79a-98eb7f525a64/20125492831835.png” />
<img alt=”” width=”500″ height=”195″ src=”http://file.open.com.cn/ItemDB/60124/b181a099-8210-4279-ae60-1bb5a2d18341/20125485824380.png” />
A:<img alt=”” width=”335″ height=”27″ src=”http://file.open.com.cn/ItemDB/60124/b181a099-8210-4279-ae60-1bb5a2d18341/20125485833567.png” />
B:<img width=”351″ height=”23″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/b181a099-8210-4279-ae60-1bb5a2d18341/201254164720358.png” />
<img alt=”” width=”348″ height=”80″ src=”http://file.open.com.cn/ItemDB/60124/e3cdf762-8934-47a8-a568-6f6bcd5944d9/20125492111389.png” />
A:<img alt=”” width=”78″ height=”73″ src=”http://file.open.com.cn/ItemDB/60124/e3cdf762-8934-47a8-a568-6f6bcd5944d9/20125492126950.png” />
B:<img alt=”” width=”75″ height=”75″ src=”http://file.open.com.cn/ItemDB/60124/e3cdf762-8934-47a8-a568-6f6bcd5944d9/20125492137622.png” />
C:<img width=”77″ height=”75″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/e3cdf762-8934-47a8-a568-6f6bcd5944d9/201254165113849.png” />
D:<img alt=”” width=”72″ height=”74″ src=”http://file.open.com.cn/ItemDB/60124/e3cdf762-8934-47a8-a568-6f6bcd5944d9/2012549225511.png” />
<font face=”Arial”>排列 3421 的逆序数是（ ）</font>
A:1
B:5
C:2
D:4
<img alt=”” width=”274″ height=”107″ src=”http://file.open.com.cn/ItemDB/60124/2ba75b5f-75fb-4202-86a6-ffb9cc5c051e/201253164921988.png” />
A:<img alt=”” width=”157″ height=”24″ src=”http://file.open.com.cn/ItemDB/60124/2ba75b5f-75fb-4202-86a6-ffb9cc5c051e/201253164934691.png” />
B:<img alt=”” width=”162″ height=”25″ src=”http://file.open.com.cn/ItemDB/60124/2ba75b5f-75fb-4202-86a6-ffb9cc5c051e/201253164946833.png” />
C:<img width=”181″ height=”20″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/2ba75b5f-75fb-4202-86a6-ffb9cc5c051e/201254164045948.png” />
D:<img alt=”” width=”173″ height=”24″ src=”http://file.open.com.cn/ItemDB/60124/2ba75b5f-75fb-4202-86a6-ffb9cc5c051e/20125316509864.png” />
<img alt=”” width=”513″ height=”82″ src=”http://file.open.com.cn/ItemDB/60124/68b8eed1-37dd-4928-a697-2c72ac6a77c7/201253153454939.png” />
A:<img alt=”” width=”47″ height=”33″ src=”http://file.open.com.cn/ItemDB/60124/68b8eed1-37dd-4928-a697-2c72ac6a77c7/201253153510752.png” />
B:<img width=”31″ height=”47″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/68b8eed1-37dd-4928-a697-2c72ac6a77c7/20125416304182.png” />
C:<img alt=”” width=”57″ height=”49″ src=”http://file.open.com.cn/ItemDB/60124/68b8eed1-37dd-4928-a697-2c72ac6a77c7/201253153550222.png” />
D:<img alt=”” width=”58″ height=”52″ src=”http://file.open.com.cn/ItemDB/60124/68b8eed1-37dd-4928-a697-2c72ac6a77c7/20125315365410.png” />
<img alt=”” width=”505″ height=”70″ src=”http://file.open.com.cn/ItemDB/60124/d1e9b4bc-cce4-4d77-9ef3-6e28f2fbf2ca/201253152553376.png” />
A:<img alt=”” width=”302″ height=”27″ src=”http://file.open.com.cn/ItemDB/60124/d1e9b4bc-cce4-4d77-9ef3-6e28f2fbf2ca/20125315267329.png” />
B:<img alt=”” width=”297″ height=”30″ src=”http://file.open.com.cn/ItemDB/60124/d1e9b4bc-cce4-4d77-9ef3-6e28f2fbf2ca/201253152621111.png” />
C:<img alt=”” width=”298″ height=”27″ src=”http://file.open.com.cn/ItemDB/60124/d1e9b4bc-cce4-4d77-9ef3-6e28f2fbf2ca/20125315263518.png” />
D:<img width=”295″ height=”22″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/d1e9b4bc-cce4-4d77-9ef3-6e28f2fbf2ca/201254162748189.png” />
<p> <img width=”541″ height=”180″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/653d8657-16ec-49d5-9baa-dd4267fc6581/201253163630573.png” /> </p>
A:1
B:-1
C:8
D:-8
<img alt=”” width=”358″ height=”94″ src=”http://file.open.com.cn/ItemDB/60124/2721bd5a-6a1a-48df-8ad1-8b18f11dd2cf/201253162340329.png” />
A:<img alt=”” width=”97″ height=”25″ src=”http://file.open.com.cn/ItemDB/60124/2721bd5a-6a1a-48df-8ad1-8b18f11dd2cf/201253162351220.png” />
B:<img alt=”” width=”83″ height=”26″ src=”http://file.open.com.cn/ItemDB/60124/2721bd5a-6a1a-48df-8ad1-8b18f11dd2cf/20125316242267.png” />
C:<img width=”154″ height=”23″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/2721bd5a-6a1a-48df-8ad1-8b18f11dd2cf/201254163737310.png” />
D:<img alt=”” width=”144″ height=”24″ src=”http://file.open.com.cn/ItemDB/60124/2721bd5a-6a1a-48df-8ad1-8b18f11dd2cf/20125316242549.png” />
<img alt=”” width=”114″ height=”38″ src=”http://file.open.com.cn/ItemDB/60124/34645fba-7248-484b-9df8-aef23ff5b858/20125315556514.png” />
A:<img alt=”” width=”84″ height=”34″ src=”http://file.open.com.cn/ItemDB/60124/34645fba-7248-484b-9df8-aef23ff5b858/2012531567419.png” />
B:<img width=”71″ height=”31″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/34645fba-7248-484b-9df8-aef23ff5b858/20125416243476.png” />
<img alt=”” width=”413″ height=”33″ src=”http://file.open.com.cn/ItemDB/60124/48dc4176-b19e-4208-ae77-ac44509c2359/20125491813523.png” />
A:<img width=”484″ height=”88″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/48dc4176-b19e-4208-ae77-ac44509c2359/201254165048645.png” />
B:<img alt=”” width=”404″ height=”28″ src=”http://file.open.com.cn/ItemDB/60124/48dc4176-b19e-4208-ae77-ac44509c2359/20125491833803.png” />
C:<img alt=”” width=”456″ height=”67″ src=”http://file.open.com.cn/ItemDB/60124/48dc4176-b19e-4208-ae77-ac44509c2359/20125491843771.png” />
D:<img alt=”” width=”275″ height=”30″ src=”http://file.open.com.cn/ItemDB/60124/48dc4176-b19e-4208-ae77-ac44509c2359/20125491854786.png” />
<img alt=”” width=”469″ height=”85″ src=”http://file.open.com.cn/ItemDB/60124/c4b0bcd6-f950-4292-93e7-ac8bed1b725d/20125317927902.png” />
A:<img width=”139″ height=”73″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/c4b0bcd6-f950-4292-93e7-ac8bed1b725d/201254164352418.png” />
B:<img alt=”” width=”127″ height=”71″ src=”http://file.open.com.cn/ItemDB/60124/c4b0bcd6-f950-4292-93e7-ac8bed1b725d/20125317950559.png” />
<img alt=”” width=”491″ height=”81″ src=”http://file.open.com.cn/ItemDB/60124/79f6b9bf-7886-4d33-980b-b1e629f50573/2012531521209.png” />
A:<img alt=”” width=”280″ height=”64″ src=”http://file.open.com.cn/ItemDB/60124/79f6b9bf-7886-4d33-980b-b1e629f50573/201253152134885.png” />
B:<img width=”275″ height=”60″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/79f6b9bf-7886-4d33-980b-b1e629f50573/201254162646569.png” />
<img alt=”” width=”374″ height=”161″ src=”http://file.open.com.cn/ItemDB/60124/817374ca-4f1f-4eb2-bec5-21f603fd0438/20125315354580.png” />
A:<img width=”112″ height=”36″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/817374ca-4f1f-4eb2-bec5-21f603fd0438/201254162318279.png” />
B:<img alt=”” width=”111″ height=”42″ src=”http://file.open.com.cn/ItemDB/60124/817374ca-4f1f-4eb2-bec5-21f603fd0438/20125315424649.png” />
<img alt=”” width=”521″ height=”111″ src=”http://file.open.com.cn/ItemDB/60124/82ce3d91-3b35-46f4-b222-2cb8b751d64b/201253168196.png” />
A:<img alt=”” width=”97″ height=”28″ src=”http://file.open.com.cn/ItemDB/60124/82ce3d91-3b35-46f4-b222-2cb8b751d64b/20125316814753.png” />
B:<img alt=”” width=”94″ height=”28″ src=”http://file.open.com.cn/ItemDB/60124/82ce3d91-3b35-46f4-b222-2cb8b751d64b/20125316825581.png” />
C:<img width=”61″ height=”22″ alt=”” src=”http://file.open.com.cn/ItemDB/60124/82ce3d91-3b35-46f4-b222-2cb8b751d64b/201254163629874.png” />
D:<img alt=”” width=”90″ height=”23″ src=”http://file.open.com.cn/ItemDB/60124/82ce3d91-3b35-46f4-b222-2cb8b751d64b/20125316850770.png” />
