新月体性肾小球肾炎时，增生最显著的细胞是（） A.纤维细胞 B.肾小球血管内皮细胞

患者，男性，65岁。因慢性支气管炎、慢性阻塞性肺气肿入院，按照医嘱护士从上午8点半开始为患者输液，9点半查房时发现患者自行调快输液速度，1000ml液体已快输完。患者突然出现胸闷、气促、咳嗽、咳粉红色泡沫痰。

护士给患者20%～30%乙醇湿化吸氧的目的是（）。

A.预防肺部感染

B.减少回心血量

C.提高吸入氧浓度

D.扩张周围血管

E.减低肺泡内泡沫的表面张力

写字楼原指用于办公的建筑物，一般由（）组成。

A.绿化系统

B.办公用房

C.辅助用房

D.交通系统

（）的教学方式是音乐教学中常用的方法。

A.主动配合

B.集体探究

C.口传心授

D.自然吸收

Who won the World Cup 1994 football game What happened at the United Nations How did the critics like the new play (1) an event takes place, newspapers are on the streets (2) the details. Wherever anything happens in the world, reporters are on the spot to (3) the news.

Newspapers have one basic (4) , to get the news as quickly as possible from its source, from those who make it to those who want to (5) it.

Radio, telegraph, television, and (6) inventions brought competition for newspaper. So did the development of magazines and other means of communication. (7) , this competition merely spurred the newspapers on. They quickly made use of the newer and faster means of communication to improve the (8) and thus the efficiency of their own operations. Today more newspapers are (9) and read than ever before. Competition also led newspapers to branch out into many other fields. Besides keeping readers (10) of the latest news, today’s newspapers (11) and influence readers about politics and other important and serious matters. Newspapers influence readers’ economic choices (12) advertising. Most newspapers depend on advertising for very (13) .

Newspapers are sold at a price that (14) even a small fraction of the cost of production. The main (15) of income for most newspapers is commercial advertising. The (16) in selling advertising depends on a newspaper’s value to advertisers. This (17) in terms of circulation. How many people read the newspaper

Circulation depends (18) on the work of the circulation department and on the services or entertainment (19) in a newspaper’s pages. But for the most part, circulation depends on a newspaper’s value to readers as a source of information (20) the community, city, county, state, nation, and world—and even outer space.

1（）

A.Just when

B.While

C.Soon after

D.Before

为使热水系统腐蚀降低，应在热水回水管回水顶部通入少量（）。

A、氢气

B、氮气

C、工厂风

D、蒸气