肿疡、溃疡、皮肤病糜烂结痂渗液不多者，治疗常用（）
A.膏药
B.油膏
C.箍围药
D.掺药
E.洗剂
参考答案：B
---Mr. Li’s lecture was ____.
--- But it was a pity that I missed it.
worth listening B. worthy of listening
C. worth listening to D. worthy to listen to
循环水二次滤网堵塞将导致凝结器真空（）
A.升高
B.降低
C.不变
D.先升高后降低
