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【单选题】
在采用主阀和辅阀的慢转起动回路中，在正常起动过程中（）。A.
主、辅阀
B.
主阀开、辅阀关
C.
主、辅阀
D.
主阀关、辅阀开
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【单选题】听力原文：M: Could you tell me where the nearest post office is? W: Go straight until you come to the traffic light. Turn right there and go about 200 meters and there you can't miss it. Q: How many turns ...
A.
Two turns.
B.
Four turns.
C.
One turn.
D.
Three turns.
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【单选题】Task 1 Directions: After reading the following passage, you will find 5 questions or unfinished statements, numbered 36 through 40. For each question or statement there are 4 choices marked A, B, C, a...
A.
To show that a hacker is more dangerous than a thief.
B.
To tell people that thieves like to steal computers nowadays.
C.
To demand that a computer network should be set up against thieves.
D.
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