买二手房通过中介好吗:ccna试题
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1.how can a binary be represented?
(a)5 volts
(b)by the presence of voltage
(c)by the absence of voltage
(d)all of the above <right>
(a)5 volts
(b)by the presence of voltage
(c)by the absence of voltage
(d)all of the above <right>