中国大学MOOC: http://edu-image.nosdn.127.net/581311BC4F5E866B4534FB8A2CB01F10.png?imageView&thumbnail=890x0&quality=100如果矩阵X满足AXB=C,则X是( )
举一反三
- 中国大学MOOC: 实腹式轴压杆绕x,y轴的长细比分别为http://edu-image.nosdn.127.net/CEDDCE7A3BB52B52DC56A37DE9DF8675.png?imageView&thumbnail=890x0&quality=100,http://edu-image.nosdn.127.net/2715192C2D5C066B84F9EEC130D1DD78.png?imageView&thumbnail=890x0&quality=100,对应的稳定系数分别为http://edu-image.nosdn.127.net/051E7EF77A20CC8EE7AE73090D7D0B9F.png?imageView&thumbnail=890x0&quality=100,http://edu-image.nosdn.127.net/CDC96ACA4577E26B3DE9DBF3AFBCEC46.png?imageView&thumbnail=890x0&quality=100,若http://edu-image.nosdn.127.net/991E5D4B35F3193105567CAF1B1CB1EC.png?imageView&thumbnail=890x0&quality=100,则( ) 。
- 如果f(x)对任何x都满足f(1+x)=2f(x),且f(0)存在,f’(0)=2,则f’(1)=()。 A: 4 B: -4 C: 8 D: -8
- 中国大学MOOC: 图示梁BC段的弯矩方程和x 的范围正确的是( )。http://edu-image.nosdn.127.net/3004B37D20CD9A8313C083236246D1E5.png?imageView&thumbnail=890x0&quality=100
- 中国大学MOOC: 若f(x)可导函数,f(x) > 0,且满足http://img1.ph.126.net/Og3c5_iIyAsEDmsrJsu5xg==/6631571342028069508.png,则f(x) = ( )
- 中国大学MOOC: 如图所示,C1 = 10μF,C2 = 10μF,C3 = 4μF,这三个混联电容器的等效电容等于_____ μF。http://edu-image.nosdn.127.net/65D6094B32A3CE849E8FB8FE96823CD2.png?imageView&thumbnail=890x0&quality=100