【单选题】【消耗次数：1】
18.- ______ did you sleep last night? - I stay up too late to go to sleep.
①
How
②
When
③
Why
④
Where
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did you sleep last night? I stayed up too late to go to sleep.
①
?How
②
When
③
Why
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?Where
【单选题】
You must have stayed up late last night, _____?
①
mustn’ t you
②
don’ t you
③
didn’ t you
④
needn’ t you
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08. It is not that I do not like plays. The reason why I did not go to the theater last night was that I could not ____ the time.
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offer
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leave
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affor
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manage
【单选题】
18.- Did you get a dictionary?- No, I _____, but there were not any _____.
①
tried; to be left
②
had tried to; leaving
③
tried to; left
④
had tried; have left
【单选题】
19._____ all this work and so little sleep at night, I don’t think I can go on much longer.
①
What about
②
What if
③
What with
④
What for
【单选题】
I used to ( ) if I didnt get at least six hours sleep at night.
①
moaning
②
moat
③
moan
④
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——How did you like Nick’s performance last night ?—— To be honest ,his singing didn’t ________to be much?
①
appeal
②
refer
③
belong
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occur
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It was ____ of you not to play the piano while I was having a sleep.
①
considerate
②
careful
③
considering
④
considerable
【单选题】
You never told us why you were one hour late for the last meeting, ____?
①
weren’t you
②
didn’t you
③
have you
④
did you
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【判断题】
对轴向尺寸较大的回转件，必须采取措施，使其各质量产生的离心惯性力的向量和以及各离心惯性力偶矩的向量和均等于零，使回转件同时作包含以上两种内容的平衡，称为动平衡，该说法（ ）
①
正确
②
错误
【单选题】
（ ）的设计主要是合理地选择各种标准液压元件和设计部分非标准液压元件组成液压系统，以满足液压设备所需的运动与动力等要求。
①
低压系统
②
液压系统
③
气压系统
④
高压系统