第9题: [单项选择]经常参加体育锻炼,对心肺功能的影响主要表现为() A. 肺活量大,安静时心率慢而有力,每搏输出量小,心脏容积大等 B. 肺活量大,安静时心率快而有力,每搏输出量大,心脏容积小等 C. 肺活量大,安静时心率慢而有力,每搏输出量大,心脏容积大等 D. 肺活量大,安静时心率快而有力,每搏输出量小,心脏容积大等 参考答案:C
第23题: [单项选择]Where does this conversation most probably take place A. In a dentist’s office. B. At the employment office. C. In a pharmacy. D. In a coffee shop. 参考答案:A 答案解析:[听力原文]
M: Will I need to have this tooth pulled
W: I don’t think so. Let’s try filling it first.