How did you __________ to Tian'anmen Square?[ ]
A. go
B. went
C. goes
答案:A
成人脑脊液总量平均为:()
A.130ml
B.300ml
C.500ml
D.600ml
乳岩的发生主要与以下脏腑有关的是()
A.心
B.肝
C.脾
D.肺
E.肾