通过()可以满足生产企业“零库存”生产的要求。
A.上门供货
B.提前供货
C.延时供货
D.准时供货
参考答案:D
Turn on the television or open a magazine and you ________ advertisements showing happy families.
A.will often see
B.often see
C.are often seeing
D.have often seen
返矿多少与配料、混合、()都有有密切的关系。