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【判断题】
对流传热的强弱用表面对流传热系数h表征， 其单位是【图片】，它是一个物性参数。A.
正确
B.
错误
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【简答题】阅读短文内容，判断正(T)误(F)。 I have always heard that walking under a ladder brings bad luck, but I' never thought so. I have walked under ladders many times, but I have never met anything bad before.It's the d...
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