单项选择题

There is free firewall software available that can run on minimal hardware and provide a good level of (71) to your network.

A. protective
B. profecting
C. protection
D. profection
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单项选择题
A multimedia system allows end users to share, transfer and process a variety of forms of information in a (70) manner.
A. fixed

B. fix

C. unifying
D. unified
单项选择题
A．CMIS B．CMIP C．SNMP D．Open View
A．CMIS
B．CMIP
C．SNMP
D．Open View
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