Think it over before ______ important decisions. [ ]
A. to make
B. make
C. making
C
肝胃不和型恶阻的治法是
A.健脾和胃,降逆止呕 B.健脾豁痰,降逆止呕 C.抑肝和胃,降逆止呕 D.益气养阴,和胃止呕 E.以上都不是
什么叫金属钝化剂?