第5题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. She is very happy that the English class was cancelled. B. She meant to go but slipped. C. She meant to go to class but forgot. D. She forgot to tell him. 参考答案:D 答案解析:[听力原文]
M: Nobody told me that the English class was cancelled today.
W: Yeah, sorry, I want to, bu
第6题: [单项选择]导致消化性溃疡病的重要病因是() A. 吸烟 B. 遗传因素 C. 化学物质的刺激 D. 强烈的精神刺激 E. 胃窦部幽门螺杆菌感染 参考答案:E 答案解析:本题考查消化性溃疡病的诱因。大约90%的十二指肠溃疡和80%的胃溃疡由胃窦部幽门螺杆菌感染所致。A、B、C、D均为促成消化性溃疡病的外部因素。