●There is free firewall software available that can run on minimal hardware and
●There is free firewall software available that can run on minimal hardware and provide a good level of (74) to your network.
(74) A．protective
B．profecting
C．protection
D．profection
正确答案：C【解析】免费的防火墙可以安装在很小的硬件上，对计算机网络提供高水平的保护。
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