试题详情
单项选择题UMG8900新发货的插框框号要设置为4时，则拨码开关bit0-bit1-bit2-bit3-bit4-bit5-bit6-bit7的设置为（）

A、on-on-off-on-off-off-off-off

B、on-off-on-on-off-off-off-off

C、off-off-off-off-on-on-off-on

D、off-off-off-off-on-off-on-on

  • A

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