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药物代谢涉及两类反应：Ⅰ相反应和Ⅱ相反应。Ⅰ相反应包括氧化、还原和水解3种，通常是脂溶性药物通过反应生成极性基团；Ⅱ相反应为结合反应，通常是药物或Ⅰ相反应生成的代谢产物结构中的极性基团与机体内源性物质反应生成结合物。

硫喷妥在体内的代谢路径主要是（）

A.脱氨基化

B.脱硫氧化

C.S-氧化

D.羟化

E.S-烷基氧化

答案

参考答案：B

填空题

Part 4


Questions 26-45


·Read the following passage and decide which answer best fits each space.
·For questions 26-45, mark one letter A, B, C or D on the Answer Sheet.
Participation (26) high school sports is not a constitutional right. (27) , it is a privilege, paid for by taxpayers, open to students who promise to (28) certain conduct requirements on and off the field. One of these promises is to (29) from using drugs. Drug use is a serious problem among high school students. Studies show that as many as 500, 000 high school students use muscle-pumping, life-destroying substances such as steroids. Many more use illegal drugs, (30) cause discipline problems and (31) the stage for lifelong (32) .
Drug testing works to (33) and identify use. That is why drug testing is required to compete in the Olympics, the National Collegiate Athletic Association and the National Football League. (34) drug testing was instituted by these organizations, use of performance- (35) drugs has been greatly reduced. We should want (36) in schools.
Indeed, many athletes (37) testing programs, and no wonder. Without testing, athletes have to choose between drug use and a competitive disadvantage (38) the field.
Those who challenge the need for drug testing may be forgetting (39) it is like be an adolescent. Peer pressure is enormous, and one of the few effective counter-weights is the fear of being caught. More importantly, once drug use is (40) , a school can (41) to the student before he or she gets addicted or arrested.
For 25 years, public schools (42) by federal judges and civil libertarians, with results everyone can see. It is time (43) decisions on how to run public schools locally (44) officials. There is nothing unconstitutional about asking those who gain the advantages of school-sponsored athletics to contribute to the safety of other players, the integrity of the game and their own well-being. The Supreme Court should leave these programs (45) .

A．keep

B．meet

C．maintain

D．reach
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多项选择题

影响品酒效果的原因有（）

A.身体健康状况与精神状态因素

B.心理因素

C.品酒能力及经验因素

D.评酒环境因素
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