问题
单项选择题
A firewall is a (71) system designed to (72) an organization’s network against threats.
A．operating
B．programming
C．security
D．data
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
A firewall is a (71) system designed to (72) an organization’s network against threats.
A．operating
B．programming
C．security
D．data
参考答案：C
