English people can't give up hamburgers or fried chicken because they’re delicious. However, the French are changing. They aren't interested in          food like before.

A. fast B. healthy  C. natural

（）确立了辨证论治的原则

A.《神农本草经》

B.《伤寒杂病论》

C.《黄帝内经》

D.《八十一难经》