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听力原文:M: What happened at your farm when the earthquake passed? W: Oh, it was terrible. I'll never forget it to my dying day. I hope I never see anything like that again. It was terrible. M: But that's incredible, Mrs. Skinner. Did you say that everything in front of your house had moved? W: Yes, everything had moved into the place of the other! M: But your front path had completely disappeared? W: Yes, that's right. Oh it was terrible, terrible. M: And your husband Jack? Was he all right? W: Yes,but the cowshed had moved too it had moved several metres. Jack was all right I could see him running round after the cows-all the cows had escaped, you see. They were running all over the place it was impossible to catch them. M: So Jack, your husband, was all right. W: Well he was a bit shocked like me, but he was all right. Oh, l forgot to tell you about the granary that had moved south too. Its normal place was behind the house and now it was near the cowshed. Can you believe it? M: Incredible, Mrs. Skinner. And the house itself what about your house? W: Well then we saw what had happened. Everything had moved one way that is, to the south except the house. The house,can you believe it had moved the other waythe house had moved north. So the house went one way and everything else the garden, the trees, the granary went the other way. (20)
A.
Ruined by the earthquake.
B.
Moved 3 meters.
C.
As good as ever.
D.
Unknown.
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【单选题】一对渐开线斜齿圆柱齿轮的正确啮合条件是 ( )
A.
m n1 = m n2 = m , α n1 =α n2 =α , β 1 =-β 2
B.
m 1 = m 2 = m,α 1 =α 2 =α,
C.
m n1 = m n2 = m,β 1 =β 2
【简答题】一对渐开线斜齿圆柱齿轮正确啮合的条件是 。
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A.
m n1 = m n2 = m ; α n1 = α n2 = α ; β 1 = - β 2
B.
m n1 = m n2 = m ; α n1 = α n2 = α ; β 1 = β 2
C.
m 1 = m 2 = m ; α 1 = α 2 = α ; β 1 = β 2
D.
m 1 = m 2 = m α 1 = α 2 = α ; β 1 = - β 2
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A.
文字设计
B.
包装设计
C.
插画设计
D.
活动地点、时间、主要内容
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A.
实价等于时价
B.
基价等于时价
C.
基价等于实价
D.
实价上涨率等于零
E.
各种货物时价上涨率相同
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A.
m n1 = m n2 = m ; α n1 = α n2 = α ; β 1 = β 2
B.
m n1 = m n2 = m ; α n1 = α n2 = α ; β 1 = - β 2
C.
m 1 = m 2 = m ; α 1 = α 2 = α ; β 1 = β 2
D.
m 1 = m 2 = m α 1 = α 2 = α ; β 1 = - β 2
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A.
正确
B.
错误
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