选择题：●A firewall is a (68) system designed to (69) all organization,s network aga－inst threats.

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题目内容：
●A firewall is a (68) system designed to (69) all organization,s network aga-inst threats.

(68) A．operating

B．programming

C．security

D．service

(69) A．prevent

B．protect

C．develop

D．exploit




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分类：软考初级   题型：选择题
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