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【单选题】
微机正在工作时电源突然中断供电,此时计算机( )中的信息全部丢失,并且恢复供电后也无法恢复这些信息。A.
ROM
B.
RAM
C.
硬盘
D.
软盘
拍照语音搜题，微信中搜索"皮皮学"使用
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