问题 多项选择题

下列关于消防救援口防火检查内容的叙述中,正确的有()。

A.消防救援口的设置位置与消防车登高操作场地相对应 

B.窗口的玻璃应易于破碎,并在外侧设置易于识别的明显标志 

C.洞口的净高度和净宽度应分别小于0.80m和1.00m 

D.消防救援口沿建筑外墙逐层设置,设置间距不宜大于50m,并须保证每个防火分区不少于1个 

E.楼层的专用消防口应设置阳台,并从二层开始向上层架设钢梯

答案

参考答案:A, B, E

解析:消防救援口防火检查的主要内容有:(1)消防救援口的设置位置与消防车登高操作场地相对应。其窗口的玻璃应易于破碎,并在外侧设置易于识别的明显标志。(2)消防救援口洞口的净高度和净宽度分别不宜小于0.80m和1.00m,其窗口下沿距室内地面不宜大于1.20m。(3)消防救援口沿建筑外墙逐层设置,设置间距不宜大于30m,并须保证每个防火分区不少于2个。(4)洁净厂房与洁净区同层外墙设置通往洁净区的专用消防口,其宽度不宜小于0.75m,高度不宜小于1.80m,并应设有明显标志。楼层的专用消防口应设置阳台,并从二层开始向上层架设钢梯。

计算题
阅读理解

阅读理解。

     Stephen Hawking's book A Brief History of Time was a huge commercial success. Its achievements in

bringing difficult scientific ideas to a wide audience are not so clear. Now the distinguished physicist has

teamed up with his daughter Lucy to produce a children's book designed to communicate contemporary

physics. Will it capture the attention of young minds and teach them some real science?Will it be boring and

over the heads of the prospective readers?

     George's Secret Key to the Universe is an adventure story complete with villains (反面人物) and hero and

is illustrated with enjoyable line-drawings. It involves a lost pig,a humorously portrayed (描写) intelligent

computer,school bulies and a trip through the Solar System. Didactic discussions on aspects of modern

physics,such as supernova explosions and black-hole physics are hung on this set-up.There are also fact boxes

on physics and astronomy,and some photographs of astronomical phenomena:planets,comets,galaxies (星系)

and so on. Overall, the book is a serious effort to convey facts and ideas in present day astronomy and

astrophysics,within a science-fiction adventure story.

     The mixture is great. Children love facts and adventure stories. The combination will catch their interest

and keep them occupied for hours. After ten minutes of leafing through the book,my granddaughter Ruby

was deeply absorbed and I had to promise to bring it back for her to read after I had completed my review.

Like any educational tool,it will succeed for some and not for others. I suppose there should be more of the

former.

1. Where do you think this passage is taken?

A. From a news story.

B. From a textbook.

C. From a book review.

D. From an advertisement.

2. Which of the following books is mainly reviewed in this passage?

A. George's Secret Key to the Universe.

B. A Brief History of Time.

C. The Nature of Space and Time.

D. Hawking's fact and fiction.

3. What is the author's attitude towards the book being reviewed?

A. It will be less successful.

B. It will be more successful.

C. It will be a complete failure.

D. It all depends on Ruby.

4. The underlined word "leafing" (in the last paragraph) probably means _______.

A. adding leaves to a book

B. throwing away a book

C. tearing up a book

D. turning pages of a book