二氧化碳灭火剂用量计算,根据灭火场所的不同可以有哪几种计算方法。A、体积计算法 B、

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问题:

二氧化碳灭火剂用量计算,根据灭火场所的不同可以有哪几种计算方法。

A、体积计算法

B、面积计算法

C、体积计算法和面积计算法

D、周长计算法

考点:二级消防工程师消防安全技术综合能力消防安全技术综合能力题库
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图中a、b、c、d、e五个地点,能看到阳光直射现象的地点有(  )

A.a、b、d三地

B.a、d两地

C.a、b、c三地

D.a、c两地

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钨电极弧熔金时需保护加压的是()。

A.空气

B.氧气

C.氖气

D.氩气

E.氢气

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词汇运用

1. -Do you like __________(tomato)?

    -Yes, very much.

2. -Can he __________(turn) off the light?

    -Yes, he can.

3. It's half past seven now. Sandy __________(write) a letter to her friend.

4. -How long do you spend __________(do) your homework every day?

    -Two hours.

5. Millie, __________(not put) it on now. Wait a minute.

6. Jim! Whose turn is it __________(make) a wish?

7. Look at the shoes. They're those __________(dance).

8. They ask us __________(raise) money for poor children in our country.

9. The boy often makes the girl __________(cry). You should teach him a lesson.

10. Daniel doesn't have a healthy diet. He often goes to school without __________(eat) breakfast.

11. -What __________ the scarves __________(make) of?

      -Wool.

12. He often __________(carry) water for me. He's a kind person.

题型:单项选择题

会务期间,小轿车的座次应为“右为上,左为下;后为上,前为下”。

题型:单项选择题

难燃烧体是用难燃材料做成的建筑构件或用可燃材料做成而用不燃材料做保护层的建筑构件,这类构件在空气中遇明火或高温作用下难起火、难微燃、难炭化,且当火源移开后燃烧和微燃立即停止。()

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