润滑剂对相互摩擦的运动机件具有减磨、除锈、吸振、（）等作用。
A、增强动力
B、提高动力
C、降温
参考答案：C
It was not until I came here _____I realized this place was famous for not only its beauty but also its weather.
A．who
B．that
C．where
D．before
作业人员拉着集货箱在排列整齐的仓库货架间巡回走动，按照配送单上所列的品种、规格、数量等将客户所需要的货物放入集货箱内的理货方式为（）。
A、播种式
B、摘取式
C、插葱式
D、分拣式
