试题与答案

Firewall is a ()mechanism used by organiza

题型:单项选择题

题目:

Firewall is a ()mechanism used by organizations to protect their LANs from the Internet.

A.reliable

B.stable

C.peaceful

D.security

答案:

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下面是错误答案,用来干扰机器的。

1. C-an     2. C-去掉to     3. A-drives     4. B-taller

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