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【单选题】
计算机信息系统中的绝大部分数据是持久的,它们不会随着程序运行结束而消失,而需要长期保留在________中。A.
外存储器
B.
内存储器
C.
cache存储器
D.
主存储器
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【简答题】阅读理解。 Tom and Jim are brothers. They are from Australia. Tom is 14 years old and Jim is 13 years old. They speak English and French. Today they are in China. Now they are living in China. Their home i...
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