选择题:【单选题】下列( )不是外存储器的特点。

题目内容:

【单选题】下列( )不是外存储器的特点。

A、
容量大
B、
成本低
C、
通常在断电后仍能保存信息
D、
通常将一些临时的或少量的数据和程序放在外存储器上。

参考答案:

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