单项选择题
A.感电 B.电灼伤 C.电器火灾 D.电烫伤
A.50 B.100 C.185 D.500
A.00000H~000FFH B.00000H~003FFH C.00000H~0FFFFH D.F0000H~FFFFFH
A.感电 B.电灼伤 C.电器火灾 D.化学灼伤
A.11110.001 B.11110.010 C.11100.001 D.11100.010
A.00100101 B.11011010 C.11011011 D.00011001
A.00010011 B.11101100 C.11101101 D.00011001
A.RS-232 B.USB C.IEEE-488 D.IEEE-1394
A.DataBus B.AddressBus C.ControlBus D.PowerBus