【单选题】【消耗次数：1】
不能释放内存变量的命令就是( )
①
release all
②
clear all
③
clear
④
clear memo
参考答案：
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相关题目
【单选题】
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①
essential
②
confusing
③
awful
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puzzled
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①
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②
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merit
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virtue
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①
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①
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①
Their language proficiency is low
②
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③
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④
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distinction
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随机题目
【多选题】
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①
缺乏历史资料
②
历史资料不全
③
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④
对更新换代产品及心产品进行预测
⑤
既要有量化分析，有要有质的分析