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【简答题】
积分环节的输出量与输入量对时间的积分成正比，其数学模型为( ) A. B. C. D.
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【单选题】We are late. That’s _____ we have to start now .
A.
why
B.
the reason that
C.
the reason for why
D.
why that
【单选题】Unit 7-6.mp3: Why does the woman refuse partial shipment?
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Because it is not safe
B.
Because they are seasonal goods
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Because they are sea food
【单选题】M: We’d better hurry. I think that’s our plane. W: Oh, no. I wanted to get a newspaper. Have I got time? M: Well, I don’t think we do have time. Look, look ... W: All right, you take that bag,...
A.
They are buying a newspaper.
B.
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C.
They are catching a plane.
D.
They are taking bags.
【单选题】M: We’d better hurry. I think that’s our plane. W: Oh, no. I wanted to get a newspaper. Have I got time? M: Well, I don’t think we do have time. Look, look... W: All right, you take that bag, and ...
A.
They are buying a newspaper
B.
They are hurrying to the railway station
C.
They arecatching a plane
D.
They aretaking bags
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