可治疗梅尼埃病的药物是（）
A.猪苓
B.茵陈
C.泽泻
D.茯苓
E.垂盆草
参考答案：C
下列函数中，y随x的增大而增大的函数是[ ]
A.y=x-1
B.y=-2x
C.y=-3x+1
D.y=-x-3
No chicken or duck ______ in the supermarket since the first case of H7N9 was reported dead.
A．has been sold
B．was sold
C．is sold
D．are sold
