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【单选题】
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D
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【简答题】与继电器联锁系统相比较，计算机联锁系统的主要特点主要是以（）及特殊的接口电路代替了大部分的继电电路。
【简答题】与继电器联锁系统相比较，微机联锁系统的特点主要是以（）及特殊的接口电路代替了大部分的继电电路。
【简答题】与继电器联锁系统相比较,计算机联锁系统的特点主要是以( )及特殊的接口电路代替了大部分的继电电路。
【单选题】—Do you think you will be able to finish your writing by five o’clock today? — ______. I’ll be busy with experiments all day.
A.
Not a little
B.
Not a chance
C.
Not to mention it
D.
Not a big deal
【简答题】In the future your automobile will run on water instead of gas! You will be able to buy a supercomputer that fits in your pocket! You might even drive a flying car! Not all past predictions have been ...
【单选题】—Do you think you will be able to finish your writing by five o’clock today? — ______. I’ll be busy with experiments all day.
A.
Not a chance
B.
Not a little
C.
Not to mention it
D.
Not a big deal
【单选题】We trust that you will be able to accept our offer, which shal() against reply by cable
A.
kept open
B.
keep valid
C.
be kept firm
D.
be keeping open
【单选题】We trust that you will be able to accept our offer, which shall() against reply by cable
A.
kept open
B.
keep valid
C.
be kept firm
D.
be keeping open
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