膀胱湿热引起的前阴病，宜选用以下何方（）
A.八正散
B.猪苓汤
C.龙胆泻肝汤
D.补中益气汤
E.萆薢分清饮
参考答案：C
已知2a=3b=k（k≠1），且2a+b=ab，则实数k的值为 [ ]
A.6
B.9
C.12
D.18
It looks________you are ill.You should go to see the doctor. [ ]
A. as
B. as though
C. which
D. whether
