问题
单项选择题
刚性防水屋面质量验收时，细石混凝土防水层不得有渗漏或积水现象，其检验方法是（）
A.观察检查
B.雨后或淋水、蓄水检验
C.计量措施
D.现场抽样复验报告
答案
参考答案：B
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刚性防水屋面质量验收时，细石混凝土防水层不得有渗漏或积水现象，其检验方法是（）
A.观察检查
B.雨后或淋水、蓄水检验
C.计量措施
D.现场抽样复验报告
参考答案：B
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| It is 1 in Qingdao. It is very hot here. Now, there are many people 2 vacation. They go to the beach and have 3 good time there. Today is 4 . It is not very hot. On the beach, a lot of people 5 to their friends 6 looking at the beautiful sea. Some of them are 7 . Others are taking 8 . Can you find 9 ? I'm the boy in blue shorts. I'm going to dive. It's 10 . | ||||
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