题目内容

轴力的大小与杆件的横截面面积无关。

A. 对
B. 错

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轴力是作用在杆件轴线上的载荷。

A. 对
B. 错

I'm in heaven.Does this mean ___________?

A. I'm delighted
B. I'm unhappy

ideas don't drop fully formed from the skiesDoes this mean that ideas ________________?

A. need to be developed with careful thinking
B. are immediately created through good teaching

in the long runDoes this mean_____________?

A. at a time in the future
B. with a great deal of effort