题型:选择题 — You ran into Mr. Johnson! How did that happen? — Well, _______ of us was looking where we were going. We came around the corner at the same time.[ ]A. neither B. either C. both D. none 查看答案
题型:单项选择题 配伍题 患者女性,45岁,胸骨左缘第3肋间闻及舒张期高调叹气样递减型杂音,心尖部闻及舒张中晚期隆隆样杂音()A.二尖瓣关闭不全B.二尖瓣狭窄C.主动脉瓣狭窄D.心房黏液瘤E.主动脉瓣关闭不全 查看答案