胸痹治方原则为（）
A.治本为主
B.治标为主
C.标本同治
D.先治其标，后治其本
E.以上皆非
参考答案：D
– How was your last weekend ?
– It relaxing. I great fun.
A．was; have
B．is; have
C．was; had
D．is; had
生产工艺岗位浅槽重介分选机司机，浅槽重介分选机就地手动操作的程序是什么？
