某一类高层商住楼,地下1层,地上24层,建筑高度84米,建筑面积32000平方米,负

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问题:

某一类高层商住楼,地下1层,地上24层,建筑高度84米,建筑面积32000平方米,负1层为设备房,1-5层为商场,商场每层面积2500平方米,6-24层为住宅。问:

该建筑商场采用自然排烟,其每层可开启外窗面积不应小于()m2

A、20

B、30

C、40

D、50

考点:公安消防岗位资格考试建筑工程防火设计建筑工程防火设计题库
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瑜伽的基本姿势有哪几种?

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When TV news programs report wars or disasters, the editors rarely use the most horrifying pictures of dead or wounded victims because they don’t want to upset their viewers. Even so, viewers are usually warned in advance that they may find some of these scenes disturbing, so they can look away if they choose. But the men and women whose job is to record those scenes-the TV cameramen-have no such choice. It is their duty to witness the horrors of the world and record them, no matter how terrible and unpleasant they may be. Consequently, it is one of the most dangerous, exposed and emotionally taxing jobs the world has to offer.

Today, the demand for their work is rising. The explosion of satellite broadcasting and 24-hour news in recent years has created an almost insatiable (贪得无厌的) demand for TV information. But major broadcasters and the TV news agencies—such as Reuters and WTN-have never had enough staff to meet the worldwide demand for up-to-date pictures, so increasingly they turn to “freelance” TV cameramen.

These freelance cameramen are independent operators tied to no particular organization. They will work for any company which hires them, be it for just a few hours or for several weeks in a war zone. But if the freelance cameraman is injured in the course of the job, the TV company is not responsible for him. The freelancer must survive on his own.

TV will always need hard, vivid moving pictures which are fresh, but these companies feel uncomfortable with large numbers of employees on their books, explains Nick Growing, once foreign editor for Britain Channel 4 News and now a BBC news presenter.

By hiring freelancers, they can buy in the skills they need only when they need them. It also enables them to contract out the risk, he says.

小题1:TV news agencies turn to freelance cameramen in order to           .

A.save expense and avoid risks

B.get free and useful pictures

C.get first-hand information and pictures

D.satisfy the greed of the freelance cameramen小题2:We can infer from the passage that the freelance cameramen             .

A.have to take a lot of risks in the course of work

B.are tied to many TV news agencies

C.have better skills than other cameramen

D.need to contract out risks of work for TV companies小题3:According to this passage, some major broadcasters and TV news agencies            .

A. have employed enough cameramen

B. are not willing to employ many cameramen

C. are very mean to freelancers

C. are responsible for the freelancer if he is injured

小题4:The author of this passage shows his           the freelance cameramen.

A.sympathy to

B.respect for

C.anger to

D.admiration to

题型:单项选择题

计算机病毒具有隐蔽性、()、传染性、破坏性,是一种特殊的寄生程序。

A.潜伏性

B.免疫性

C.抵抗性

D.再生性

题型:单项选择题

辛味药的作用是( )

A.发散、行气、行血
B.收敛固涩
C.软坚散结、泻下
D.补益、和中、缓急
E.渗湿利水

题型:单项选择题

我国《产品质量法》规定,销售者应当采取措施,保持销售产品的()。

A、质量

B、真实

C、良好

D、有效

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