善清上焦之火的药物是()
A.黄连
B.黄芩
C.黄柏
D.苦参
E.栀子
参考答案:B
下列常见物质中属于纯净物的是 [ ]
A. 18K黄金
B. 生理盐水
C. 大理石
D. 乙醇
I asked Lily for paper, but she didn’t have .[ ]
A. any; some
B. any; any
C. some; any
D. some; some