引起弥散量增加的有()
A.先天性心脏病
B.风湿性心脏病
C.红细胞增多症
D.贫血
E.肺出血
参考答案:C, E
— Oh, you are here. ?
— To the toilet.
A.Where have you gone
B.Where have you been
C.Where are you going
D.Where will you go
Many provinces have been hit with smog. If _______ unsolved, the problem may lead to more serious results.
A.having left
B.to leave
C.left
D.leaving