生姜泻心汤的主治病证是()。
A.寒热错杂之痞证
B.水热互结之痞证
C.胃气虚弱之痞证
D.胃虚有热之痞证
E.痰热互结之痞证
参考答案:B
Why hasn’t he come?________ on time, we would have to put off the trip.
A.If he doesn’t come
B.If he will not come
C.If he didn’t come
D.If he wouldn’t come
常温下,下列各组物质相混合时不能产生气体的是( )
A.铁与浓硫酸
B.铝与稀硫酸
C.铝与氢氧化钠
D.大理石与盐酸