试题与答案

氨系统盐水蒸发器上表面应比盐水低（）cm。A.10 B.15 C.20 D.25

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题型：单项选择题

题目：

氨系统盐水蒸发器上表面应比盐水低（）cm。

A.10

B.15

C.20

D.25

答案：

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