下列哪项是虚热证与实热证的鉴别要点（）
A.发热口干
B.盗汗颧红
C.大便干结
D.小便短赤
E.舌红而干
参考答案：B
The patient was warned _______ oily food after the operation. [ ]
A. to eat not
B. eating not
C. not to eat
D. not eating
爆炸性混合气体按最大试验安全间隙分级时，危险性最大的是（）。
A.ⅡA
B.ⅡB
C.ⅡC
D.ⅡD
