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【简答题】
什么是机器周期?什么是指令周期?MCS-51 单片机的一个机器周期包括多少个 时钟周期?
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举一反三
【单选题】The decision you --------them surprised.
A.
a.made making
B.
b.make made
C.
c .made made
D.
d.making made
【单选题】听力原文：W: I have to think about your offer. I can't say yes or no at the moment. M: You can take your time. It is OK if you let me know your decision in a day or two. Q: What does the man mean? (19)
A.
He thinks the woman is wasting her time.
B.
He thinks the woman should make full use of her time.
C.
He is eager to know the woman's answer.
D.
He thinks there is no need for the woman to hurry.
【单选题】Can you explain _____ all of us the reasons ____ your decision? We can’t understand it.
A.
to ; of
B.
/ ; of
C.
to ; for
D.
/ ; for
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