在2.0LMondeoEATC系统中，压缩机循环开关和双压力开关以何种方式

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问题单项选择题

在2.0LMondeoEATC系统中，压缩机循环开关和双压力开关以何种方式控制压缩机的通断（）

A.并联连接

B.串联连接

C.串、并联连接

D.并、串联连接

答案

参考答案：B

选择题

---- What do you think of Harry, our new roommate?

---- I am not sure, but he is always asking ______ questions and them are very hard to answer.

A．a great many of; a great number of

B．a great many; many of

C．a great number; a great many of

D．a large amount of , many

选择题

（2x﹣1）⁵的展开式中x⁴的系数是[ ]

A．﹣80

B．80

C．﹣5

D．5