题型:选择题 — He was nearly killed in a car accident the other day.— Oh, when was ________ exactly?— It was on April 28 ________ he was riding a bike on the driveway.[ ]A. this; that B. that; whenC. that; that D. this; when 查看答案
题型:单项选择题 患者,女,32岁,劳累后心悸,气短10年,近来常有心绞痛发作,偶有晕厥,体检:心脏扩大,可闻及病理性杂音,脉压减少,拟诊主动脉瓣狭窄。主动脉瓣狭窄最主要的体征是A.第一心音正常B.主动脉瓣第二心音减弱C.可闻及第四心音D.胸骨右缘第2肋间喷射性收缩期杂音,多在Ⅲ级以上E.收缩压降低 查看答案