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问题 单项选择题

在堤身压实作业中，分段、分片碾压的相邻作业面搭接碾压宽度，平行堤轴线方向不应( )。

A．大于0.5m
B．小于0.5m
C．等于0.5m
D．等于0.3m

答案

参考答案：B

填空题

分解因式：4x2-9y2+12y-4=______．
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单项选择题


Questions 27-30

A．(A) Because he could avoid being killed by the H-bomb.

B．(B) Because he had a new world to fight for.

C．(C) Because he was able to enjoy a pollution-free life.

D．(D) Because he succeeded in setting up his own business.
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