2. 计算机
  3. ______ is the first line of protect between your computer and the public Internet.

______ is the first line of protect between your computer and the public Internet.

admin2021-01-08  63
问题 ______ is the first line of protect between your computer and the public Internet.
选项 A、The Internet protocol
B、The firewall
C、The anti-virus software
D、The intrusion-detection systems
答案B
解析
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