可使二尖瓣狭窄杂音增强的因素是() A.Valsalva动作 B.左侧卧位 C.深吸 发布时间:2017-06-12 14:18 │ 来源:www.tikuol.com 题型:单项选择题 问题: 可使二尖瓣狭窄杂音增强的因素是()A.Valsalva动作B.左侧卧位C.深吸气D.卧位到迅速站立E.坐位前倾
题型:单项选择题 If you set up your goal and start your preparations as early as possible, you will achieve your ____ to become one of the most famous scientists in the future. [ ]A. amusement B. ambition C. appointment D. agriculture 查看答案