题目内容

加工单元中为了使急停发生后,系统停止工作而状态保持,以便急停复位后能从急停前的断点开始继续运行,可以用二种方法,一是用()实现,另一方法是用主控指令实现。

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Thesetwoproducts_________twodifferentaudiences.

A. link to
B. make up
C. caterto
D. recall up

Nothing shall _________ us from doing what we think right.

A. prefer
B. triple
C. crave
D. deter

Our long _________ with your company has brought great benefits.

A. implication
B. resistance
C. association
D. substance

They also warn that these countries are among the most_________to climate change.

A. lax
B. vulnerable
C. addictive
D. nasty

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