生姜善治何种呕吐（）
A.胃热呕吐
B.胃寒呕吐
C.胃虚呕吐
D.虫积呕吐
E.食积呕吐
参考答案：B
模式分解需要保持______或______或两者均保持。
The director had her assistant _____ some hot dogs for the meeting. [ ]
A. picked up
B. picks up
C. pick up
D. picking up
