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【单选题】
通常空气（）A.
在作垂直运动过程中，可以近似看绝热的
B.
在作水平运动过程中，可以近似看成是绝热的
C.
C.B
D.
D.B都错
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A.
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B.
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C.
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A.
go
B.
to go
C.
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D.
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A.
Because her mother demanded her to do so.
B.
Because that’s the only way she knows how to raise the child.
C.
Because she enjoyed having a tiger mom when growing up.
D.
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