慢性二尖瓣关闭不全血流动力障碍结果造成下列哪种改变()
A.左房和左室扩大
B.左室扩大
C.全心扩大
D.左房和右室扩大
E.左室肥厚
参考答案:A
— Oh, my cat is really fat.
— You __ have given her so much food.
A.wouldn't
B.mustn't
C.couldn't
D.shouldn't
蛤蚧的功效是()
A.补肺益肾,纳气平喘,助阳益精
B.补肺气,助肾阳,养心脾
C.补肺气,定喘嗽,和脾胃
D.助肾阳,定喘嗽,补脾气
E.补肺气,助肾阳,滋肝阴