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【单选题】
预测时,下列( )的影响无法预测。A.
季节成分
B.
趋势成分
C.
周期成分
D.
随机成分
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举一反三
【简答题】时间继电器的延时方式有两种:()和()
【简答题】时间继电器的延时方式有两种,即___和 ___
【单选题】A: Have you heard that all flights have been cancelled because of the weather? B: ______.
A.
No, I didn't hear that. I've been in a meeting all day.
B.
0h,my goodness! Are you hurt?
C.
Yes, what a pity! But I'm glad you could stay.
D.
Damn the weather! I wish I could fly.
【单选题】— Have you heard that Susan has been appointed Director of the Engineering Department? — After working so hard for so many years, ____. [ ]
A.
she surely welcomes it
B.
she certainly deserves it
C.
she is welcomed to it
D.
it' s good news
【单选题】— Have you heard that he was admitted into Beijing University? — Is that true? I’m glad that his efforts at last ______.
A.
worked out
B.
paid off
C.
turned out
D.
paid for
【单选题】－Have you heard that China has problems Diaoyu Island? －Yes, but I think China will have no difficulty the problem.
A.
in ; to solve
B.
with ; to solve
C.
with ; solving
D.
in ; solving
【单选题】—Have you heard that he was admitted into Beijing University? —Is that true? And I'm glad that his efforts at last ___．
A.
took off
B.
paid off
C.
turned out
D.
paid for
【单选题】听力原文：M: Have you heard that in another few years you may be able to buy a car that changes colors every day to match the outfit you are wearing? W: Oh, please be serious! I suppose they will change sh...
A.
She is impressed.
B.
She is doubtful.
C.
She is shocked.
D.
She is surprised.
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