单项选择题
A.USB B.SCSI 3 C.IEEE 1284 D.SERIAL DB 15
A.SPP B.ECP(Extended Capabilities Port) C.EPP(Enhanced Parallel Port) D.UPP
A.Jeweler’s cloth B.Silicone spray C.An emery cloth D.Contact cleaning solution
A.ROM需要编写程序 B.因电流浪涌而出现故障 C.CMOS RAM电池电量不足 D.主板的电闸重新开启
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