报警阀组侧边与墙的距离不小于()m。A.0.4 B.0.5 C.0.6 D.0.7

题型:单项选择题

问题:

报警阀组侧边与墙的距离不小于()m。

A.0.4

B.0.5

C.0.6

D.0.7

考点:一级消防工程师一级消防工程师综合练习一级消防工程师综合练习题库
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阅读短文,请根据所给中文正确拼写单词,使短文意思完整。每空限填一词。

One night a hotel caught a fire , and people in it ran out in their night clothes .

_小题1:(幸运地),nobody was  小题2:(受伤).

Two men stood outside and looked at the fire.

“Before I came out,” said one, “I ran into some of the rooms and found a lot of money. People don’t think of money when they’re _小题3:(害怕的).When _小题4:(任何人) leaves paper money in a fire, the fire burns it. So I took all the bills that I _小题5:(能够)find. No one will be poor _小题6:(因为) I took them.”

“You don’t know my work, ” said the 小题7:(另一个).

“What is your work?”

“I’m a policeman.”

“Oh!” cried the  小题8: (第一)man. He thought _小题9:(迅速地)and said, “And do you know my work?”

“No,” said the policeman.

“I’m a writer. I’m always telling  小题10:(故事)about things that never happened.”

题型:单项选择题

特异危险度是指

A.暴露组的发病率或死亡率与未暴露组的发病率或死亡率之比

B.暴露组的发病率或死亡率与未暴露组的发病率或死亡率之差

C.暴露组的发病率或死亡率与未暴露组的发病率或死亡率之积

D.暴露组的发病率或死亡率与未暴露组的发病率或死亡率之和

E.暴露组的发病率或死亡率与未暴露组的发病率或死亡率的平方

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(6分)用地壳中某主要元素生产的多种产品在现代高科技中占有重要位置,足见化学对现代物质文明的重要作用。例如:

(1)计算机芯片的主要成分是(填化学式,以下同)     ;   

(2)光导纤维的主要成分是     

(3)目前应用最多的太阳能电池的光电转化材料是     

题型:单项选择题

1.有人认为读书要有选择。

2.有人认为应当博览群书。

3.我的看法。

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