All modem______are multitasking and can support running seve

【名词&注释】

多任务(multitask)、网络管理软件(network management software)

[单选题]All modem______are multitasking and can support running several processes simultaneously．

A. database
B. operating system
C. MIS
D. DOS

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举一反三：

[多选题]下列选项中不是网络管理软件的是 ______ 。

A. Net Manager
B. OpenView
C. NetView
D. UseNet
H.

[单选题]

B． The hub C． The bridge D． The router

A. The repeaterB． The hub
B. The bridge
C. The router

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