问题 单项选择题 B1型题

经皮给药制剂的背衬层是指()

A.是由不易渗透的铝塑合膜制成,可防止药物流失和潮解

B.治疗的药物被溶解在一定的溶液中,制成过饱和混悬液存放在这层膜内,药物能透过这层膜慢慢地向外释放

C.多为由EVA和致孔剂组成的微孔膜,具有一定的渗透性,利用它的渗透性和膜的厚度可以控制药物的释放速率,是经皮给药制剂的关键部分

D.由无刺激性和过敏性的黏合剂组成

E.是一种可剥离衬垫膜,具有保护药膜的作用

答案

参考答案:A

解析:背衬层是由不易渗透的铝塑合膜制成,可防止药物流失和潮解。药物贮库层是由厚为0.01~0.7mm的聚乙烯醇或聚酯酸乙烯酯或其他高分子材料制成的一层膜。治疗的药物被溶解在一定的溶液中,制成过饱和混悬液存放在这层膜内,药物能透过这层膜慢慢地向外释放。控释膜多为由EVA和致孔剂组成的微孔膜,具有一定的渗透性,利用它的渗透性和膜的厚度可以控制药物的释放速率,是经皮给药制剂的关键部分。胶黏膜由无刺激性和过敏性的黏合剂组成,如压敏胶、天然树胶、树脂和合成树脂等。保护膜是一种可剥离衬垫膜,具有保护药膜的作用。

阅读理解

  People fell in love with Elizabeth Taylor in 1944, when she starred in National Velvet-the story of Velvet Brown, a young girl who wins first place in a famous horse race. At first, the producers of the movie told Taylor that she was too small to play the part of Velvet. However, they waited for her for a few months as she exercised and trained—and added three inches to her height in four months! Her acting in National Velvet is still considered the best by a child actress.

Elizabeth Taylor was born in London in 1932. Her parents, both Americans, had moved there for business reasons. When World war II started, the Taylor moved to Beverly Hills, California, and there Elizabeth started acting in movies. After her success as a child star, Taylor had no trouble moving into adult(成人)roles and won twice for Best Actress: Butterfield 8(1960) and Who’s Afraid of Virginia Woolf ? (1966)

Taylor’s fame(名声)and popularity gave her a lot of power with the movie industry, so she was able to demand very high pay for her movies. In 1963, she received $1 million for her part in Cleopatra—the highest pay received by any star up to that time.

Elizabeth Taylor is a legend (传奇人物) of our time. Like Velvet Brown in National Velvet, she has been lucky, she has beauty, fame and wealth. But she is also a hard worker. Taylor seldom acts in movies any more. Instead, she puts her time and efforts into her businesses, and into helping others — several years ago, she founded an organization that has raised more than $40 million for research and education.

60. The producers didn’t let Taylor play the part of Velvet at first because they thought she      .

A. was small in size                            B. was too young

C. did not play well enough              D. did not show much interest

61. What Elizabeth Taylor and Velvet Brown had in common was that they were both     .

A. popular all their lives                B. famous actresses

C. successful when very young            D. rich and kind-hearted

62. Taylor became Best Actress at the age of     .

A. 12     B. 28         C. 31     D. 34

63. In her later life , Elizabeth Taylor devoted herself to       .

A. doing business and helping others           B. turning herself into a legend

C. collecting money for the poor                 D. going about research and education work

单项选择题