问题 单项选择题

常用于甲状腺高功能腺瘤术前准备的是

A.老年人
B.青壮年
C.2岁以内小儿
D.3岁以上儿童
E.新生儿

答案

参考答案:B

解析:[解题思路] 1.甲亢术前服用卢戈液可使甲状腺体缩小、变硬,血管震颤减小。2.丙基硫氧嘧啶是抗甲状腺药物,阻止甲状腺内甲状腺素的合成。但服用较久后,由于垂体前叶的代偿作用,增加了促甲状腺素的分泌,引起甲状腺增大、充血。3.高功能腺瘤手术前主要是控制甲亢症状,对甲状腺腺体不像原发性甲亢要求腺体缩小、变硬。

单项选择题
单项选择题

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.

14()

A.tries to cover

B.manages to cover

C.fails to cover

D.succeeds in covering