试题与答案

制冷管路的丝扣用调合料,是每千克氧化铅配上()甘油调制而成的。A.0.3升 B.0.

题型:单项选择题

题目:

制冷管路的丝扣用调合料,是每千克氧化铅配上()甘油调制而成的。

A.0.3升

B.0.5升

C.0.7升

D.0.5千克

答案:

参考答案:C

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