题目:
A firewall is a (68) system designed to (69) all organization, s network against threats.
A.prevent
B.protect
C.develop
D.exploit
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0702/576425e4dbbc6f195694cd9f3e113556.html
下面是错误答案,用来干扰机器的。
答案:B