A. they saw a stranger in the office B. their morning break was ended C. no one wanted to talk to Marie D. the boss was about to arrive 参考答案:D 答案解析:解析:由末段中的“Then Marie realized that the day's work in the office began just before Mr. Smith arrived”可
第26题: [单项选择]关于耐药菌的叙述,不正确的是() A. 可以是天然耐药 B. 亦可以是获得性耐药 C. 临床治疗其感染极为棘手 D. 易在抗生素选择压力下于医院人群中传播,甚至暴发流行 E. 获得性耐药菌特别是多重耐药菌主要因染色体突变所致 参考答案:E 答案解析:获得性耐药多因耐药质粒传递所致。