As protector of her family.s health,the poineer wo

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[填空题,10分] 已知某电路的真值表如下,该电路的逻辑表达式为( )

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[填空题,9分] TTL与非门多余的输入端应接( )

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Not until I began to workhow much time I had waste

Not until I began to workhow much time I had wasted.A.didn.t I realizeB. did I r

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[填空题,5.8分] 采用四位比较器对两个四位数比较时,先比较( )位

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