问题 单项选择题 B型题

血药浓度已降至有效浓度之下时残存的药理效应,称为()

A.副作用

B.毒性反应

C.变态反应

D.后遗效应

E.继发性反应

答案

参考答案:D

解析:5.继发性反应是指长期应用广谱抗生素,敏感菌被抑制,不敏感菌乘机大量繁殖而导致的二重感染。副作用是药物治疗量时出现的与治疗无关的作用。药物导致的异常免疫反应是一种变态反应。药物剂量过大或药物在体内蓄积过多时发生的危害性反应称为毒性反应。血药浓度已降至有效浓度之下时残存的药理效应称为后遗效应。

选择题
阅读理解

B.阅读理解:(30分)                        

A

Now we can see a man and his wife at the breakfast table. They are not speaking to each other.

They haven’t spoken to each other at the breakfast table for years. The husband is reading his newspaper. We can’t see his face. The wife looks very worried as she gets a cup of tea ready for him. Today she is using a new kind of tea for the first time. The husband picks up his cup. He isn’t interested. He tastes his tea. Suddenly he puts down his newspaper. Something is different! Can it be the tea? He takes another taste. It’s wonderful. He smiles. He looks at his wife and says in surprise, “Doris, when did you cut your hair?” Doris is pleased. She answers, “Two months ago.” Doris asks, “Herbie, when did your hair begin to become white?” He answers, “A long time ago.” Doris says, “We have been together for many years, but we never cared about each other.” Now they aren’t worried any longer. Breakfast is different. Has a new kind of tea changed their lives?

36. This story happens______________________.

A. before breakfast                     B. after breakfast

C. at home                            D. in a teahouse

37. In the passage, we can see ________________________.

A. Doris is drinking tea                 B. Herbie likes the new kind of tea

C. Doris is reading a newspaper           D. Herbie is very young and good-looking

38. Herbie and Doris lived ______________ before this day.

A. a wonderful                        B. an unhappy

C. an enjoyable                        D. a friendly

39. Which of the following statements is true?

A. They are good friends.                B. They have just got married.

C. They like to talk about their hair.       D. They are no longer young.

40. From the passage, we think it may be ______________.

A. a radio programme                   B.  a short film

C. a computer game                     D.  a beautiful painting