目前临床上应用的心脏机械瓣膜主要缺点是() A.噪音大 B.耐磨性差 C.易变形 D 发布时间:2017-08-21 06:04 │ 来源:www.tikuol.com 题型:单项选择题 问题: 目前临床上应用的心脏机械瓣膜主要缺点是()A.噪音大B.耐磨性差C.易变形D.组织相容性差E.需终生抗凝
题型:单项选择题 — Sorry, Joe. I have to leave now. — _____, Tina. I can do it by myself. [ ]A. That's OK B. You're welcome C. Don't say so D. You're right 查看答案