图样上所需书写的文字、数字或符号等，均应笔画清晰、字体端正、排列整齐、标点符号清楚正确。( )
参考答案：对
The most polluting vehicles from driving through the city since then.[ ]
A. are banned
B. ban
C. have been banned
D. have banned
具有宣肺降气、清热化痰功能的方剂是（）。
A.泻白散
B.旋覆代赭汤
C.清气化痰丸
D.麻杏石甘汤
E.定喘汤
