平胃散中君药是（）
A.神曲
B.川芎
C.苍术
D.香附
E.栀子
参考答案：C
下列各组物质仅用水就能区分的是[ ]
①NO2和Br2 ②硝基苯和苯 ③固体NaOH和固体NH4NO3
A．①③
B．②③
C．①②
D．①②③
After he retired from office, Rogers _______ painting for a while, but soon lost interest.
A．saved up
B．took up
C．kept up
D．drew up
