防风通圣散的功用是
A.解表清里,升清止泻B.疏风解表,清热通便C.清热解毒,疏风散邪D.发汗祛湿,兼清里热E.解表散寒,温肺化饮
参考答案:B
22. Was it _____the conference of APEC that made Shanghai the focus of the world then?
A.holding
B.to hold
C.held
D.having held
下列叙述中正确的是( )
A.氯化钠溶于水时在电流作用下电离成Na+和Cl-
B.溶于水后能电离出H+的化合物都是酸
C.CaCO3的水溶液导电性很弱,但CaCO3属于电解质
D.NH3溶于水所得溶液能导电,故NH3属于电解质