皮皮学，免费搜题
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搜题
【单选题】
CD-ROM光盘是___型光盘,可用做计算机的___存储器的数字化多媒体设备。A.
重写，内
B.
只读，外
C.
一次，外
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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