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问题 单项选择题

某混凝土坝工程为提高岩体的整体性和抗变形能力而采用的水泥灌浆属于（）

A.帷幕灌浆

B.接触灌浆

C.接缝灌浆

D.固结灌浆

答案

参考答案：D

单项选择题

Regarding their family roles, Chinese wives, Korean wives and American wives differ from each other in both how long they spent at home and their status as an individual.

A. each other in either the time they spend home and their status
B. one another in both how long they spend at home and what their status
C. each other in both the time they spend home and their status
D. one another in both the time they spend at home and their status
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单项选择题

目前双极型集成电路和单极型集成电路的典型电路分别是TTL电路和（）电路。

A.CMOS

B.CPU

C.AMP

D.AFC
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