[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fObggSLhtrsh1dRmKexJeQRe9M1wlQgIbT0cxuCEiv6U":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":61},[],"2023-09-20 02:02:08",97579204,[8,9,10,11],"悬空","通过电阻2.7千欧接电源","通过电阻10千欧接地","通过电阻510欧接地",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},27,"d4db3cb6831f18c1bd7cda7547690fef","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc75220fcc9ca3655241bcb905a6a1e6d.png","数字电路","f428c8cef46045f3a89c0152a3320af5","第三章测验","TTL电路在正逻辑系统中,相当于输入逻辑"1"的是()",[21,32,40,49,58,62,70,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],97579199,[25,26,27,28],"OC门","OD门","三态门","CMOS与非门","常用于总线结构电路中的门电路是()","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":39,"source":30,"type":31},[],97579201,[8,36,37,38],"通过电阻2.7kΩ接电源","通过电阻2.7kΩ接地","通过电阻510Ω接地","TTL电路在正逻辑系统中,以下各种输入中相当于输入逻辑"0"的是()",{"answer":41,"createTime":5,"id":42,"options":43,"question":48,"source":30,"type":31},[],97579202,[44,45,46,47],"0V","1.4V","1.1V","0.3V","用内阻为20KΩ\u002FV的万用表去测量TTL与非门(74系列)的一个悬空的输入端,若其它输入端均悬空,则测量的电压值大约为",{"answer":50,"createTime":5,"id":51,"options":52,"question":57,"source":30,"type":31},[],97579203,[53,54,55,56],"低电平","高电平","高阻","以上都不对","如图所示,A=VIH,B= VIL ,C=Vcc时, Z= \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd28adbb33cabf8a682d794a8682ebef4.png\">",{"answer":59,"createTime":5,"id":6,"options":60,"question":19,"source":30,"type":61},[],[8,9,10,11],1,{"answer":63,"createTime":5,"id":64,"options":65,"question":69,"source":30,"type":61},[],97579205,[8,66,67,68],"通过电阻3千欧接电源","接地","与有用输入端并联","对于CMOS与非门闲置输入端的处理,正确的是()",{"answer":71,"createTime":72,"id":73,"options":74,"question":79,"source":30,"type":61},[],"2023-09-20 02:02:09",97579206,[75,76,77,78],"与非门","三态输出门","集电极开路门","漏极开路门","可以实现"线与"功能的门电路是()",{"answer":81,"createTime":72,"id":82,"options":83,"question":88,"source":30,"type":61},[],97579207,[84,85,86,87],"负逻辑的或门","正逻辑的非门","正逻辑的与门","正逻辑的或门","可以实现逻辑表达式Y=AB的是()",{"answer":90,"createTime":91,"id":92,"options":93,"question":96,"source":30,"type":97},[],"2023-09-22 07:29:16",97850913,[94,95],"正确","错误","一般TTL门电路的输出端可以直接相连,实现线与",3,{"answer":99,"createTime":91,"id":100,"options":101,"question":102,"source":30,"type":97},[],97850915,[94,95],"TTL与非门的输入端悬空时,相当于输入为逻辑1"]