刮板输送机主要有()、()、()、机尾部、附件等组成。
参考答案:机头部、刮板链、溜槽
He’d rather at home than out.[ ]
A. to stay, to go
B. to stay, going
C. stay, go
D. staying, to go
下列何项不是四逆汤组方的配伍功效的特点()
A.作用持久
B.药少
C.功专
D.效宏
E.精当