假设教师表文件中某记录的年龄为35岁,职称为讲师,工资为750元则据此写出的逻辑表达式为:(年龄>30OR工资<=300)ANDNOT职称=〃讲师〃。其结果为()
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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