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网络安全管理的目标是保证网络中的 ,整个系统满足以下要求:系统的 、 (或真实性)、可靠性、可用性、不可抵赖性、可控性。
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【简答题】通常固定电话网中有用户线和两种传输线路。
【单选题】During fueling, all doors. Hatches,and ports（）.
A.
to windward should be opened and the ones to leeward should be closed
B.
to leeward should be opened and the ones to windward should be closed
C.
should be opened
D.
should be closed
【简答题】选词填空。（有两个多余选项） see looked for dog kill wolf die tear remind back hunt his remember More than seven hundred years ago, the Prince of Wales had a very big a...
【简答题】通常固定电话网中有 和中继线两种传输线路。
【单选题】During fueling，all doors，hatches，and ports ______.
A.
to windward should be opened and the ones to leeward should be closed
B.
to leeward should be opened and the ones to windward should be closed
C.
should be opened
D.
should be closed
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