题目内容

Recently, everything’s getting much more expensive,_______?

A. doesn't everything?
B. doesn’t it
C. isn’t everything
D. isn’t it

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Linda’s just come back from America,_______?

A. hasn't she
B. has she
C. didn't she
D. did she

--___________will they finish building the house?--In two weeks.

A. How many times
B. How far
C. How soon
D. How often

偏心拉伸实质上是()的组合变形。

A. 两个平面弯曲
B. 轴向拉伸与弯曲
C. 轴向拉伸与剪切
D. 平面弯曲与扭转

偏心压缩时,截面的中性轴与外力作用点位于截面形心的两侧,则外力作用点到形心的距离e和中性轴到形心距离d之间的关系是()。

A. e=d
B. e>d
C. e越大,d越大
D. e越大,d越小

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