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【简答题】
Look at the girl, she is eleven. Her name is Wang Fang. I am eleven, too. My name is Kate.Wang Fang and I are good friends. She is in Class One, Grade One. She is Number 8 in Row 5. I am in Class One, Grade One, I am Number 9 in Row 6. We are at school today. 小题1:How old is Wang Fang? A. She is eleven. B. She is twelve. C. She is ten. 小题2:Wang Fang and I are____________ . A. girls B. boys C. teachers 小题3:What grade are Wang Fang and I in? A. Grade One. B. Grade Two. C. Grade Three. 小题4:Wang Fang is my____________ . A. good teacher B. good friend C. brother 小题5:Where are Wang Fang and I today? At school. B. At home. C. Here.
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反馈参考答案：
举一反三
【单选题】一根长为L的均匀细棒可绕O点在竖直面内无摩擦转动。设棒在如图所示的水平位置时所受的重力矩为M,当棒从远端被截去 长度后,剩余部分在水平位置所受的重力矩变为( )
A.
1/3M
B.
1/6M
C.
1/9M
D.
1/81M
【简答题】构效关系(structure-response relationship)
【简答题】被誉为“曲中李杜”的元代散曲作家是哪两位？
【判断题】一平面一般力系当向A点简化时,有R=0,M A ≠0,说明原力系可以简化为一力偶,其力偶矩就为主矩M A ,其与简化中心无关。所以将R=0,M A ≠0再向原力系作用面内任意点B简化,必得到R=0,M B =M A ≠0的结果 。
A.
正确
B.
错误
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