第29题: [单项选择]{{I}}Questions 14 to 17 are based on the following dialogue.{{/I}}What do we learn about Tom A. That he is not a student. B. That he is not a serious student. C. That he is not very concerned about Jane. D. That he is willing to compromise. 参考答案:D 答案解析:[精解] 推理题。从对话中可以看出,Tom和Jane谈论的是学习上的事情,他们都是学生,因此选项[A]That the is not a student(他不是学生)是错误的;而选项[B]That h
第35题: [单项选择]下列关于哌替啶说法错误的是() A. 哌替啶是一个合成镇痛药 B. 本品为白色结晶粉末,易溶于水,易吸潮,遇光易变黄 C. 因结构中含酯键,水溶液短时间煮沸马上分解 D. 本品能通过胎盘,并随乳汁分泌 E. 镇痛作用约为吗啡的1/10 参考答案:C 答案解析:哌替啶是一个合成镇痛药,为白色结晶粉末,易溶于水,易吸潮,遇光易变黄,应密闭保存。本品能通过胎盘,并随乳汁分泌,孕妇及哺乳妇女不宜使用。哌替啶镇痛作用约为吗啡的1/10。虽然哌替啶结构中含酯键,但由于