下列叙述不属于阿托品的性质的是() A.呈左旋性 B.具有酯的结构,在酸性或碱性条件

题型:单项选择题 A1/A2型题

问题:

下列叙述不属于阿托品的性质的是()

A.呈左旋性

B.具有酯的结构,在酸性或碱性条件下发生水解

C.与左旋莨菪碱的旋光性质不同

D.阻断M胆碱受体发挥作用

E.从茄科植物颠茄等中分离出的一种生物碱

考点:药学职称考试药师专业知识主管药师专业知识考前冲刺四
题型:单项选择题 A1/A2型题

Part 4


Questions 26-45


·Read the following text and decide which answer bestfits each space.
·For questions 26-45, mark one letter A, B, C or D on the Answer Sheet.

Newspapers


Who won the World Cup 1994 football game What happened at the United Nations How did the critics like the new play When an event takes place, newspapers are on the streets (26) the details. (27) anything happens in the world, reporters are on the spot to (28) the news.
Newspapers have one basic (29) to get the news as quickly as possible from its source, from those who make it to those who want to (30) it. Radio, telegraph, television, and (31) inventions brought competition for newspapers. So did the development of magazines and other means of communication. (32) this competition merely spurred the newspapers on. They quickly made (33) of the newer and faster means of communication to improve the speed and (34) the efficiency of their own operations. Today more newspapers are printed and read than ever before.
Competition also led-newspapers to branch out into many other fields. Besides keeping readers (35) of the latest news, today’s newspapers (36) readers about politics and other important and serious matters. Newspapers influence readers’ economic choices (37) advertising. Most newspapers depend on advertising for their very (38) Newspapers are sold at a price that (39) to cover even a small fraction of the cost of production. The main (40) of income for most newspapers is commercial advertising. The (41) in selling advertising depends on a newspaper’s value to advertisers. This is measured (42) circulation. How many people read the newspaper Circulation depends (43) on the work of the circulation department and on the services or entertainment (44) in a newspaper’s pages. But for the most part, circulation depends on a newspaper’s value to readers as a source of information (45) the community, city, country, state, nation, and world—and even outer space.

A.thus

B.yet

C.still

D.as

题型:单项选择题 A1/A2型题

根据稀土离子和萃取剂的反应机理,萃取体系可以分为哪几类。

题型:单项选择题 A1/A2型题

松下牌DVD播放机

题型:单项选择题 A1/A2型题

汽车加气站使用的钢制气瓶,按制造方法不包括()

A.无缝气瓶

B.焊接气瓶

C.绝热气瓶

D.缠绕气瓶

题型:单项选择题 A1/A2型题

在人体骨骼和牙齿中最多的是()

A.钙

B.铁

C.锌

D.钾

E.钠

更多题库