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问题
名词解释
活动温度
答案
参考答案:
是指高于最低温度的日平均温度。
选择题
已知:Rt△ABC中,∠C=90°,cosA=
3
5
,AB=15,则AC的长是( )
A.3
B.6
C.9
D.12
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选择题
They didn’t ________ the true meaning of what the boss had said, and thus their task almost completely failed.
A.seize
B.catch
C.take
D.grasp
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