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【单选题】
在厚度相同的两层,有一层的温度差较大,另一层较小。请问:哪一层的热阻大?为什么?
A.
温度差较小的
B.
温度差较大的
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A.
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A.
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B.
吊杆长度与吊杆承座至千斤索眼板座之间高度的之比大小
C.
吊杆自重
D.
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A.
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D.
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A.
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B.
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C.
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A.
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B.
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A.
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B.
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C.
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D.
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B.
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C.
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