存货具有降低进货成本的功能。（）
参考答案：对
解析：存货的功能包括：防止停工待料、适应市场变化、降低进货成本、维持均衡生产。
It is in Steven Spielberg' s first film, Jaws, ____ a big white shark attacks swimmers ____ are spending their holidays in a small village by the sea.
A．where; who
B．which; that
C．that; that
D．where; that
回收站中的内容可以是( )。
A．文件
B．文件夹
C．快捷方式
D．以上均错
