第1题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. A guest and a receptionist. B. A passenger and an air hostess. C. A customer and a shop assistant. D. A lodger and a landlady. 参考答案:B 答案解析:[听力原文]
M:Sorry to trouble you.But is there any possibility of borrowing a blanket I feel cold.
W:
第21题: [单项选择]儿科病房空气培养细菌总数的卫生学标准为() A. ≤20cfu/m3 B. ≤50Cfu/m3 C. ≤100cfu/m3 D. ≤200Cfu/m3 E. ≤500cfu/m3 参考答案:E 答案解析:Ⅲ类环境的空气消毒:这类环境包括儿科病房,妇产科检查室,注射室、换药室、治疗室、供应室清洁区、急诊室、化验室、各类普通病室和房间,这类环境要求空气中的细菌总数≤500cfu/m3