泄泻适宜服用山楂、鸡内金粉的证候是（）。
A.寒湿内盛
B.湿热伤中
C.食滞肠胃
D.肝气乘脾
E.脾胃虚寒
参考答案：C
Cave exploration, which has come to be known in recent years, is a ________ new sport.[ ]
A. relatively
B. gradually
C. publicly
D. strictly
传热恶化发生在受热强的上升管中（）
