第9题: [多项选择]体外无活性,经体内代谢产生活性的药物是 A. 奥美拉唑 B. 贝诺酯 C. 舒林酸 D. 氯霉素 E. 维生素D2 参考答案:A,B,C,D 答案解析:奥美拉唑进入胃壁细胞后,在氢离子的影响下,发生重排形成活性形式;贝诺酯是阿司匹林的前药,在体内水解后产生阿司匹林和对乙酰氨基酚起作用;在体内,舒林酸的甲亚砜基还原为甲硫醚而显活性;维生素D2
第14题: [单项选择]A. It will reduce the amount of pollutants in the air. B. It will increase the amount of unpleasant odors from vehicles. C. It will eventually destroy the ozone layer. D. It will reduce the cost of running large vehicles. 参考答案:A 答案解析:[听力原文] Q: What effect will the increased use of DME instead of diesel fuel probably have