题目

听下面一段较长对话，回答以下小题。【1】Why does Mike call Mary?A. To get a lift from her.B. To discuss homework with her.C. To invite her to Jerry's apartment.【2】What will Mary do on Monday?A. Take a chemistry class. B. Have an exam. C. Hand in a book report. 答案：【答案】【1】 A 【2】 B 【解析】此题为听力题，解析略。【1】此题为听力题，解析略。【2】此题为听力题，解析略。生产果醋用的乳酸菌等细菌都具有的特征是A．都是异养生物               B．仅在有水条件下繁殖C．仅在有氧条件下生长          D．生存温度都超过80℃D．杀死一定环境中的所有微生物的细胞、芽孢和孢子