My suggestion is ______ we should have mercy ______ these homeless children and offer them some help.

A．that; on


B．what; to
C．which; for


D．that; for

目前在海马配件订货业务中，使用的订单类型主要有以下哪几种？（）

A、正常订单

B、紧急订单

C、火急订单

D、特殊件订单

E、以上皆是