旅行社把包价旅游产品提供给最终消费者的途径叫（）
A.销售分配
B.直接销售渠道
C.长销售渠道
D.宽销售渠道
参考答案：A
简述医院消毒预防措施。
I often go to the English corner to have a free talk with my classmates ________I am busy. [ ]
A. except that
B. except for
C. except in
D. except
