把5克盐放入50克水中,盐与盐水的比是1:11.______.
5:(5+50),
=5:55,
=1:11.
故答案为:正确.
— I think we should write a letter about the pollution the newspaper.
— OK. Let's begin. [ ]
A. to
B. for
C. in
D. at
()的基本观念是在一个或多个战略地点对全部货品进行预估,而将进一步库存部署延迟到收到客户的订单。
A.生产延迟
B.供应链延迟
C.物流延迟
D.战略延迟