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【单选题】
鼠标单击一个物体后,物体周围出现控制方块有 ()

4个
6个
8个
9个
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/46371AC9656CCBCDE75D4732FDAF3336.png title=QQ图片20160108174303.png alt=QQ图片20160108174303.png/><img src=https://huaweicloudobs.ahjxjy.cn/D21D396B38AA2D3311B32DFF3B429B81.png title=QQ图片20160108174314.png alt=QQ图片20160108174314.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/078683216D2137B6C6787C47CF752A08.png title=QQ图片20160108174326.png alt=QQ图片20160108174326.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/088A43BE148E0F9BA5CB6DBECC6C83A2.png title=QQ图片20160108174336.png alt=QQ图片20160108174336.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/06E8BAAD1ECEC250DA5ABDFFBAEA1A82.png title=QQ图片20160108174346.png alt=QQ图片20160108174346.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/2BA64BD0346C9F9EED009C9A82FCA0A0.png title=QQ图片20160108174356.png alt=QQ图片20160108174356.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/BB6602F8EBCDCBC4325AC6C2D402AC62.png title=QQ图片20160108172103.png alt=QQ图片20160108172103.png/><img src=https://huaweicloudobs.ahjxjy.cn/2185028B122EA820C3F12899EF40B3B5.png title=QQ图片20160108172114.png alt=QQ图片20160108172114.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/CC23C6DB5BA0BF66BBFFC2864C452A86.png title=QQ图片20160108172123.png alt=QQ图片20160108172123.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/EED4D03BD0C27BA6DF81137CB7AD483D.png title=QQ图片20160108172134.png alt=QQ图片20160108172134.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/161D2BDBBB638F1AEC50FA43244D2A9D.png title=QQ图片20160108172143.png alt=QQ图片20160108172143.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/3E2F5DB12481695A27D0760789A13712.png title=QQ图片20160108172158.png alt=QQ图片20160108172158.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/57132FE13F2DE4735F4D3F53FFED7853.png title=QQ图片20160108160451.png alt=QQ图片20160108160451.png/><img src=https://huaweicloudobs.ahjxjy.cn/171588FEB72EC6FE8DCA91F20C02650C.png title=QQ图片20160108160509.png alt=QQ图片20160108160509.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/11764A0C995D64C8A00BCA06E16E2899.png title=QQ图片20160108160522.png alt=QQ图片20160108160522.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/7BCA0CD43CAC629543F8E84CEC015783.png title=QQ图片20160108160534.png alt=QQ图片20160108160534.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/4AC1282EA7A7C78218566A46FCCB23CD.png title=QQ图片20160108160546.png alt=QQ图片20160108160546.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/36C21C21DE2405894D9ED59BC3F9E088.png title=QQ图片20160108160557.png alt=QQ图片20160108160557.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/A68A65205B1BAC4AA46A3A1869250DE4.png title=QQ图片20160108173533.png alt=QQ图片20160108173533.png/><img src=https://huaweicloudobs.ahjxjy.cn/ECB1F19EE76FA760B58611FB08747D51.png title=QQ图片20160108173551.png alt=QQ图片20160108173551.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/B0C584185CD7111F0104DDB5782B8D2C.png title=QQ图片20160108173600.png alt=QQ图片20160108173600.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/B6D6FAC8C3C0C1861571BB4E5966B9D8.png title=QQ图片20160108173609.png alt=QQ图片20160108173609.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/8FAE17C37FE8A266EB216070F4BE6C1C.png title=QQ图片20160108173618.png alt=QQ图片20160108173618.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/18C0A0C884DA8DCF17CDC93926EB1090.png title=QQ图片20160108173627.png alt=QQ图片20160108173627.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/A7680902CB99663BA6E23408C5C4ABFB.png title=QQ图片20160108111419.png alt=QQ图片20160108111419.png/><img src=https://huaweicloudobs.ahjxjy.cn/F7C836FE5C2376120035EBE3D8C699B9.png title=QQ图片20160108111439.png alt=QQ图片20160108111439.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/51A1F02268CD4EAF0D1BB4C81A2C8981.png title=QQ图片20160108111454.png alt=QQ图片20160108111454.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/FAF724DB88B6F9338819B0ACF799FC7E.png title=QQ图片20160108111507.png alt=QQ图片20160108111507.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/D6D9581D650D608E065C2881AE35D6A8.png title=QQ图片20160108111520.png alt=QQ图片20160108111520.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/F1950DBF13A5E2F6DF6D0A2E7B40036B.png title=QQ图片20160108111532.png alt=QQ图片20160108111532.png/>
【单选题】
设平面<img src=https://huaweicloudobs.ahjxjy.cn/31A542F228A00D0E0C454891B06C0999.png title=图片10.png alt=图片10.png/>方程分别为<img src=https://huaweicloudobs.ahjxjy.cn/15780060EFC09696E85F57C13C838872.png title=图片11.png alt=图片11.png/>,则( )

<img src=https://huaweicloudobs.ahjxjy.cn/6FD084A684B16B81128226DB7D320E19.png title=图片12.png alt=图片12.png/>与<img src=https://huaweicloudobs.ahjxjy.cn/A6AD1FC6BBAF3C1CE6C912612FEE0DF8.png title=图片13.png alt=图片13.png/>平行
<img src=https://huaweicloudobs.ahjxjy.cn/6FD084A684B16B81128226DB7D320E19.png title=图片12.png alt=图片12.png style=white-space: normal;/>与<img src=https://huaweicloudobs.ahjxjy.cn/A6AD1FC6BBAF3C1CE6C912612FEE0DF8.png title=图片13.png alt=图片13.png style=white-space: normal;/>垂直
<img src=https://huaweicloudobs.ahjxjy.cn/6FD084A684B16B81128226DB7D320E19.png title=图片12.png alt=图片12.png style=white-space: normal;/>与<img src=https://huaweicloudobs.ahjxjy.cn/6120621973DB1B0F605F96EED984CCD7.png title=图片14.png alt=图片14.png/>平行
<img src=https://huaweicloudobs.ahjxjy.cn/6FD084A684B16B81128226DB7D320E19.png title=图片12.png alt=图片12.png style=white-space: normal;/>与<img src=https://huaweicloudobs.ahjxjy.cn/6120621973DB1B0F605F96EED984CCD7.png title=图片14.png alt=图片14.png style=white-space: normal;/>垂直
【判断题】
CSS可以控制网页背景图片

正确
错误
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/AAE185294806EC4CA73EFB610C1A9891.png title=QQ图片20160108170923.png alt=QQ图片20160108170923.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/207D62FBFF318CC806CB4E2483E88FF5.png title=QQ图片20160108170933.png alt=QQ图片20160108170933.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/05DD59BEEED33F62DE42F6D6D797FC55.png title=QQ图片20160108170942.png alt=QQ图片20160108170942.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/571AEC5017B13A0B6FEED98D957B455F.png title=QQ图片20160108170953.png alt=QQ图片20160108170953.png/><img src=https://huaweicloudobs.ahjxjy.cn/F7938A5F66DC1F99480A6C9046A54096.png title=QQ图片20160108171004.png alt=QQ图片20160108171004.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/427C8E3978055D1E892E8A50A9FB6975.png title=QQ图片20160108171013.png alt=QQ图片20160108171013.png/>
【单选题】
设<img src=https://huaweicloudobs.ahjxjy.cn/EA6FB79FF8DF7A9F3A2D0CEB093C717F.png title=QQ图片20160224214006.png alt=QQ图片20160224214006.png/>在<img src=https://huaweicloudobs.ahjxjy.cn/DF3DA077C2189146990B3800DA1E18ED.png title=QQ图片20160224214023.png alt=QQ图片20160224214023.png/>偏导数存在,则<img src=https://huaweicloudobs.ahjxjy.cn/61AF63E59A60D6B49960C25A0B85414F.png title=QQ图片20160224214038.png alt=QQ图片20160224214038.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/588DCE737E539AFE5318232DBC0C8858.png title=QQ图片20160224214107.png alt=QQ图片20160224214107.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/1898B210FBB62DA4DA7997BB95A4D586.png title=QQ图片20160224214125.png alt=QQ图片20160224214125.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/C9D08ECB097A69F4F22594D120D687E7.png title=QQ图片20160224214140.png alt=QQ图片20160224214140.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/6101D759594C1C2892D8E9F8195520C5.png title=QQ图片20160224215328.png alt=QQ图片20160224215328.png/>