搜题请搜索小程序“爱下问搜题”
问题 单项选择题

在下列事务中，不能通过B to B来实现的事务是()。

A．接受发票和付款

B．实现协同作业

C．信息共享

D．实现网上纳税

答案

参考答案：D

解析：在B 和to B中．商家通过互联网与供应商联系订货，接受发票和付款。

单项选择题

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.

（）is a network layer device that supports multiple LAN interfaces and segments LANs into smaller collision and broadcast domains.

A．The repeater

B．The hub

C．The bridge

D．The router
查看答案
多项选择题

血管瘤按照组织学分类有哪几种(请从以下5个备选答案中选出4个正确选项)

A．毛细血管瘤

B．淋巴血管瘤

C．混合型血管瘤

D．蔓状血管瘤

E．海绵状血管瘤
查看答案