眩晕虚证取用百会，是因为本穴具有哪方面作用( )
A．清泻肝胆B．清利脑窍C．升提气血D．安神定志E．醒神定眩
参考答案：C
急进性肾炎临床表现最突出者为（）
A.水肿
B.高血压
C.少尿或无尿
D.镜下血尿
E.心包摩擦音
If you want to book tickets for the 2012 Olympic Games, just call 60952012. It _____be simpler.
A．mustn't
B．won't
C．needn't
D．couldn't
