【单选题】【消耗次数：1】
外存存储器两类。二者在工作原理方面的不同在于。
①
内存只用来存放数据，外存只用来存放程序
②
内存只用来存放程序，外存只用来存放数据
③
内存中的数据可以直接被CPU处理，外存中的则不能
④
内存只存放数据，外存可同时用来存放数据和程序
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相关题目
【单选题】
存储器分为内存储器和外存储器两类，下列哪种说法正确？
①
它们中的数据均可被CPU直接调用
②
其中只有外存储器中的数据可被CPU直接调用
③
它们中的数据均不能被CPU直接调用
④
其中只有内存储器中的数据可被CPU直接调用
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【单选题】
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stick
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