第24题: [单项选择]When is it cheaper to make an international call A. 10 a.m. B. 5 p.m. C. 11 p.m. D. 8 a.m. 参考答案:C 答案解析:[解析] 判断推理题。从文章中最后一段,You can save money by calling outside office hours,for example,early in the morn
第25题: [单项选择]高血压患者心脏听诊可能出现() A. S1减弱 B. S2减弱 C. S2通常分裂 D. S2反常分裂 E. 开瓣音 参考答案:D