当火场上有人受到火势、浓烟、爆炸、毒害、腐蚀、放射性物质和倒

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问题单项选择题

当火场上有人受到火势、浓烟、爆炸、毒害、腐蚀、放射性物质和倒塌等威胁时，（）是消防队的首要任务。

A.积极抢救物品

B.积极抢救人命

C.积极抢救财产

D.积极排除险情

答案

参考答案：B

填空题

根据句意及首字母填写单词。

1. I h________that I can be good at all the subjects (课程).

2. Did your father read the n________after supper last night?

3. There's no food in the kitchen.I am going to do some s________with my mother.

4. Money can buy a________ ( 时钟) ,but it cannot buy time.

5. I'm on________ ( 假日) in Shanghai with my friend Jack.

6. He s________some emails to his friends yesterday.

7. He didn't come to school b________he was ill.

8. He ________ ( 花费) too much money on clothes last year.

单项选择题

水泥砂浆地面面层施工后，养护时间不应小于( )d。

A．4

B．5

C．6

D．7