第25题: [单项选择]风湿性心脏瓣膜病二尖瓣狭窄的特征性体征是() A. 心尖区舒张中晚期隆隆样杂音,递增型 B. 第一心音亢进 C. 肺动脉瓣区舒张早期吹风样杂音 D. Graham-Steell杂音 E. 二尖瓣开放拍击音 参考答案:A 答案解析:二尖瓣狭窄的心脏听诊。
第26题: [单项选择]One reason for the difference between the British people working abroad and the average person at home is that the former ______. A. are more intellectually cultured B. have made many foreign friends C. work much harder D. hold important positions 参考答案:A 答案解析:[解析] 关于此两种人的比较,作者认为:在国外任职的英国人通常都是specialists,而国内的人则not particularly cultured in intellectual sense,区