一般不引起右心房增大的是()
A.心肌病
B.风湿性心脏病,左房室瓣狭窄
C.先天性心脏病,房间隔缺损
D.风湿性心脏病,左房室瓣关闭不全
E.以上都是
参考答案:B
计算:(3x)2=( ).
Listening is just as _____ as speaking in language learning.[ ]
A. important
B. more important
C. most important
D. the most important