______ arrival at the small village, they caught sight of the thick green trees in and around it and were attracted by the beautiful scenery .

A．On

B．At

C．In

D．As

（）是指不具有商品保管、在库管理等功能，而是单纯从事商品周转、分拣作用的物流中心。

A、流转中心

B、配送中心

C、物流中心

D、流通加工中心