采用预制板的屋面结构，防水层施工时，设有在板端头接缝处______

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问题单项选择题

采用预制板的屋面结构，防水层施工时，设有在板端头接缝处______油毡条，屋面板产生位移，防水层没有伸缩余地而引起开裂。

A．湿铺

B．干铺

C．满铺

D．花铺

答案

参考答案：B

填空题

根据句意填入单词或短语的正确形式。

1. He r_______ the mud from his shoes.

2. The whole house went up in _______ smoke in an hour. (不到)

3. Your life is in danger. There is no d_______ about it.

4. This necklace is w_______ 1,000 US dollars.

5. The boy _______ the watch _______ to see how it ran. (拆开)

6. His boss _______ him though he himself didn't think he had done anything special.

(非常器重)

7. the two countries have been _______ for many years. People there are suffering a lot.

(交战)

8. They had planned to blow up the bridge but their bombs failed to e _______.

9. She was Titanic, a ship which was said never to s_______.

问答题简答题

生物接触氧化池中的污泥多能证明微生物多吗？