题目内容

厨房卫生间常用聚氨酯防水，正确吗？

A. 正确
B. 错误

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涂料防水闭水试验最少要进行几次？

A. 1
B. 2
C. 3
D. 4

Fill in each blanks with "have", "send", "guide" or "attend" in the word's proper form.

Fill in each blanks with "give", "last", "add" or "show" in the word's proper form.

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