功用为泻火解毒的方剂是
A．黄连解毒汤
B．昔济消毒饮
C．凉膈散
D．仙方活命饮
E．五味消毒饮
参考答案：A
It is difficult to ________ a conversation with someone who only says “Yes” and “No”.
A．keep up
B．take up
C．make up
D．pick up
环境监测分为哪几种类型？
