简述生产者市场购买决策过程。
参考答案:
1)确认需要阶段;2)拟定规格要求;3)调查寻找阶段;4)选择供货来源阶段;5)签订合同阶段;6)装运验收阶段;7)评价阶段。
For each blank, choose the best answer from the four choices and write down on the answer sheet.
()is a channel’s capacity which directly reflects the data transfer rate of the channel.
()functions in a NetWare network which is used to define addressing schemes.
()is a network layer device that supports multiple LAN interfaces and segments LANs into smaller collision and broadcast domains.
()is the popular LAN developed under the direction of the IEEE802.3.
()is a device which enables digital microcomputers to communicate across analog telephone lines.
A.Token Ring
B.Token Bus
C.Ethernet
D.FDDI
釉质无机盐占总量的
A.99%B.80%C.96%~97%D.95%E.90%