_______ fun it is to play with snow in winter! [ ]
A. How
B. What a
C. What
D. Which
答案:C
脱除1mol的CO2或H2S理论上需要消耗()mol的NaOH。
A.1
B.2
C.3
D.4
温病热入心营时,其常见舌象可表现为:().
A.舌尖红赤起刺
B.舌绛而干
C.舌纯绛鲜泽
D.舌绛光亮
E.舌淡红而干