游击战以敌进我退、敌驻我扰、敌疲我打和()这“十六字诀”为战术核心。
游击战以敌进我退、敌驻我扰、敌疲我打和( )这“十六字诀”为战术核心。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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