根据我国相关的国家标准，（）是物品从供应地向接受地的实体流动过程。根据实际需要，将运输、储存、装卸、搬运、包装、流通加工、配送、信息处理等基本功能实施有机结合。

A.物流

B.供应链

C.多式联运

D.货运代理

Although your internet start-up company has few project management policies and procedures in place, it made a healthy profit last year. Experience, however, has taught you that some controls are required, especially for projects that change frequently. You would like to establish a change control system for your company, but must convince a group of money-hungry “20 somethings” to use it. To be effective, the change control system must include （）.

A．procedures that define how project documents may be changed

B．specific change requests expected on the project and plan to respond to each one

C．performance reports that forecast project changes

D．a description of the functional and physical characteristics of an item or system