下列各项，不属何首乌功效的是（）
A.润肠通便
B.截疟
C.补益精血
D.祛风止痒
E.解毒
参考答案：D
It seems water______from this tap for some time. We'll have to take it apart to put it right.
A. had leaked B. is leaking C. leaked D. has been leaking
不常用作钙强化剂的是( )。
A．磷酸氢钙 B．碳酸钙C．硫酸钙 D．葡萄糖酸钙
