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【单选题】
外伸情况如图,以下结论中 是错误的。A.
梁上各截面的剪力 Q （ x ） ≥ 0
B.
梁上各截面的弯矩 M （ x ） ≤ 0
C.
在 a< x< 2a 处， Q 值相同
D.
在 a ≤ x ≤ 2a 处， M 值相同
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【简答题】With all the careful examinations, they were convinced that the picture was _____.(真的)
【简答题】(矩阵的秩03)
【单选题】Design of all the new tools and implements is based on careful experiments with electronic instruments. First, a human 'guinea pig' is tested using a 【C1】______ tool. Measurements are taken 【C2】______...
A.
regular
B.
usual
C.
common
D.
constant
【简答题】explode Be careful with fireworks; they can ___________ in your face The force of the ____________ broke all the windows of the houses near the car.
【单选题】With all the careful examinations, they were convinced that the picture was _____.
A.
true
B.
genuine
C.
real
D.
sincere
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