工业用锡青铜的含锡量大多在3%~()之间。
A.10%
B.12%
C.14%
D.15%
参考答案:C
Whether the game will be played ___ the weather.
A.according to B. depends by C,depends on D. relies with
对长期严重心力衰竭,内科治疗无效的扩张型心肌病应考虑()
对长期严重心力衰竭,内科治疗无效的扩张型心肌病应考虑
A.瓣膜置换
B.安装DDD型起搏器
C.心脏移植术
D.绝对卧床休息
E.射频消融