[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fWmWNPklkg6zZgvpz0rG1Mk_OmG0isdIX029I5R3mRMo":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2024-05-31 13:22:43",147554402,[8,9,10,11],"8选2数据选择器","16选2数据选择器","16选1数据选择器","两位8选1数据选择器",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},20,"daac70ce18040b67dae2e49736af5436","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4818218babc134324df7b6b78c4cf3c0.jpg","逻辑代数与数字电路","exam_119831777","23级半期考试","用两片8选1数据选择器74HC151级联如下图所示,该电路可实现的功能是 ( ). \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8b85fee14d8a7980d9c9d7f269f6b188.png\">",[21,33,42,51,60,69,78,86,95,103],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2024-05-31 13:22:42",147554385,[26,27,28,29],"Z=((R'A'G')'&middot;(RA)'&middot;(RG)'&middot;(AG)')'","Z=((RA'G)'&middot;(RA)'&middot;(RG)'&middot;(AG)')'","Z=((RA'G)'&middot;(R'A)'&middot;(RG)'&middot;(AG)')'","Z=(RA'G)'&middot;(RA)'&middot;(RG)'&middot;(AG)'","试写出下面电路图的逻辑表达式( ). \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb280c4dedd957557d909051ab8c094b2.png\">","v1",0,{"answer":34,"createTime":23,"id":35,"options":36,"question":41,"source":31,"type":32},[],147554387,[37,38,39,40],"Y(A,B,C)=AC+BC","Y(A,B,C)=AC+B'C'","Y(A,B,C)=A&prime;C+BC","Y(A,B,C)=AC+B&prime;C","逻辑函数Y(A,B,C)=&sum;m(1,5,7)的最简与或式是( )",{"answer":43,"createTime":23,"id":44,"options":45,"question":50,"source":31,"type":32},[],147554390,[46,47,48,49],"100","7","1","6","设计一个对100个符号进行二进制编码,至少要( )位二进制数码",{"answer":52,"createTime":23,"id":53,"options":54,"question":59,"source":31,"type":32},[],147554392,[55,56,57,58],"Y=&sum;m(2 ,5 ,6 ,7)","Y=&sum;m(0 ,1 ,3 ,4)","Y=&sum;m(0 ,1 ,2,7)","Y=&sum;m(0 ,1 ,2 ,3)","逻辑函数Y = AC + BC' 的最小项和的形式是( )",{"answer":61,"createTime":23,"id":62,"options":63,"question":68,"source":31,"type":32},[],147554393,[64,65,66,67],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffc20e3e0466b14a71d10f6946f67f6e2.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9431534654e9980e09339c0f2c3a867d.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F901f21de605e1fdbabd70441f8e97195.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4b977f80954cf71a6df0f59c419aa3bb.png\">","有一个T形走廊,在相会处有一路灯,在进入走廊的A、B、C三地各有一个控制开关,都能独立控制.任意闭合一个开关,灯亮;任意闭合两个开关,灯灭,任意闭合三个开关,灯亮.设A、B、C代表三个开关,开关闭合,状态为1;开关断开,状态为0.灯的状态用Y来表示,灯亮,Y为1,灯灭,Y为0.下列表达式中能够实现该电路功能的是( )",{"answer":70,"createTime":23,"id":71,"options":72,"question":77,"source":31,"type":32},[],147554394,[73,74,75,76],"01","10","11","00","如图8-3优先编码器74LS148的框图,扩展输出端YS',YEX'表示芯片的状态,下面哪种情况不可能发生. \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd4c585549ea6fd5f92de41c4a15e3396.png\">",{"answer":79,"createTime":23,"id":80,"options":81,"question":85,"source":31,"type":32},[],147554398,[82,83,74,84],"16","8","2","一个二进译码器有4bit译码输入,则该译码器最多可以对( )路数据进行译码",{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":31,"type":32},[],147554400,[90,91,92,93],"至少一端为低电平","至少一端为高电平","全部为低电平","全部为高电平","有三个输入端的或非门电路,要求输出高电平,其输入端应是( )",{"answer":96,"createTime":5,"id":97,"options":98,"question":102,"source":31,"type":32},[],147554401,[99,84,100,101],"3","5","4","一个三人表决电路中,三人分别用A、B、C表示,同意时为1否则为0,当三人多数通过时输出F为1否则为0.74HC138为3线-8线译码器,输出低电平有效,用此器件设计的三人表决电路如图所示,则电路中共有( )处错误. \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5f77b8264b33d40243e0fe04422e9061.png\">",{"answer":104,"createTime":5,"id":6,"options":105,"question":19,"source":31,"type":32},[],[8,9,10,11]]