注明新陈的药物是()
A.炙麻黄
B.九孔石决明
C.绵茵陈
D.江枳壳
E.明天麻
参考答案:C
Some volunteers from Beijing arrived in Shanghai _____April 29 to work for the World Expo. [ ]
A. on
B. at
C. of
D. to
管状电渣焊的熔嘴外壁所涂药皮的作用是()和()。