由黄连、半夏、瓜蒌实组成的方剂是（）
A.半夏泻心汤
B.大陷胸汤
C.滚痰丸
D.小陷胸汤
E.清气化痰丸
参考答案：D
The young man made a ____to his parents that he would try to earn his own living after graduation.[ ]
A. prediction
B. promise
C. plan
D. contribution
脱氢进料大阀底部排放管线是向（）排放的。
A.大气
B.火炬
C.压缩机入口
D.脱氢提馏塔
