3.        The man pulled out a gold watch, __________ were made of small diamonds.

4.        

A．the hands of whom

B．whom the hands of

C．which the hands of

D．the hands of which

物流过程中运输、仓储、包装和装卸搬运各环节的改善，不能仅从单方面考虑，应将各环节作为一个系统来看待，考虑综合效益。这在物料搬运中体现了（）。

A.集装化原则

B.系统化原则

C.提高搬运活性原则

D.无效搬运原则