The engine of the ship was out of order and the bad weather ____ the helplessness of the crew at sea. [ ]

A. added to

B. added up to

C. turned out

D. made up

销售员的基本功是：（）。

A.用职业的方式去开拓客户

B.用公关的方式去接触客户

C.能准确地判断客户

D.有效地处理来自客户的障碍