【填空题】
12.双机或多机牵引时，本务机车的职务由___机车担当。J256
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【填空题】
20.天气恶劣无法辨认出站___信号机显示时，在列车具备发车条件后，司机凭车站值班员列车无线调度通信设备的发车通知起动列车，在确认出站___信号机___后,再行加速。J338
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Which feature allows a dynamic Pat pool to se lect the next address in the pat pool instead of the next port of an existing address？___
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Which IPS detection method can you use to detect attacks that are based on the attackers IP address？___
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What is the primary purpose of a defined rule in an IPS？___
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