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问题 单项选择题

下列关于液压B系统液压泵说法最正确的是：

A、共有两个液压泵，一个为直流电动泵，另一个为交流电动泵

B、共有两个交流泵

C、只有一个直流电动泵

D、只有一个交流电动泵

答案

参考答案：A

选择题

-Jenny doesn't think that Robert is honest,_____?  

-I'm afraid not.   [ ]

A. is he      

B. isn't he      

C. does she      

D. doesn't she
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选择题

He wanted to know _____ he  English party.  [ ]

A. when will we have

B. when we will have

C. when would we have

D. when we would have
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