月经先后无定期的针灸治则是
A．调补肝肾B．调补气血，温养冲任C．补虚调经D．养血调经E．舒肝理气，温经散寒
参考答案：A
— I've heard that another brand of milk powder has been banned.
— It's a shame that some companies ________ the sense of social responsibility.[ ]
A. lack
B. expose
C. miss
D. reject
以下关于冠桩的说法哪些是正确的（）
A.在保证牙胶封闭作用的前提下尽量长
B.为根长的4/5
C.越密合固位越好
D.桩长至少等于冠长
E.根尖部保留至少3mm根充物
