第31题: [单项选择]作尿糖定量检查,可加入的防腐剂是() A. 甲苯 B. 10%甲醛 C. 10%福尔马林 D. 浓盐酸 E. 95%乙醇 参考答案:A 答案解析:作尿糖定量检查,可加入的防腐剂是甲苯。
第32题: [单项选择]Questions 19 to 21 are based on the conversation you have just heard. A. The’ captain. B. The communication officer. C. The doctor. D. The frog person. 参考答案:C 答案解析:[听力原文] Whose performance do the man and the woman agree upon in the movie