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问题 单项选择题

配有普通箍筋的钢筋混凝土轴心受压构件中，箍筋的作用主要是（）。

A.抵抗剪力

B.约束核心混凝土

C.形成钢筋骨架，约束纵筋，防止纵筋压曲外凸

D.以上三项作用均有。

答案

参考答案：C

完形填空

Zengzi(曾子505---435BC), a Chinese philosopher and student of Confucius(孔子)，小题1: (believe) to be the author(作者) of Daxue. One day, as Zengzi’s wife set off(出发) for the market，her little son insisted on(坚持) going with her， 小题2: (make) a tearful scene(场面).

“Stay at home,”she said to the boy, “When I come back, I  小题3:(kill) the pig for you to eat.”

When she got back from the market, Zengzi was prepared to catch the pig and kill it. His wife stopped him, saying I was only kidding(开玩笑) to 小题4: when I said that.” “Children can’t be humored(幽默)  小题5: this way. ” he replied, “They have little  小题6:(understand). They learn from their parents and listen to  小题7:they say. To lie to him is to teach him to lie to 小题8:.” Her son will not trust her any more  小题9: a mother lies to him. This is not the way to teach 小题10: child. With that, Zengzi went to kill the pig and then cooked it for his son.
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填空题

多环布料有自然偏析即小粒度在（），大粒度在（）每圈都重复这种偏析。
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