[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fKS2U7OPOTnfF6cR20_lOMwqzKpT9Xn1-0PF0ESvxwbE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":15,"related":16,"source":26,"type":27},[],"2024-06-21 01:05:08",988743766,[8,9,10,11],"差模电压增益","共模电压增益","差模输入电阻","共模抑制比",{"courseImg":13,"courseName":14},"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fee42e18b2ffa7b982d41cdbf7c3e6854.jpg","电子产品制作","差分放大电路中适当增大公共发射极电阻,将会使电路的( ) 增大",[17,28,31,39,44,50,60,65,70,75],{"answer":18,"createTime":5,"id":19,"options":20,"question":25,"source":26,"type":27},[],988743330,[21,22,23,24],"电压串联负反馈","电流串联负反馈","电压并联负反馈","电流并联负反馈","如图所示电路属于什么反馈 ( ).\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F651ea4ed7929cb3a770ecf848d989953.png\">","v2",0,{"answer":29,"createTime":5,"id":6,"options":30,"question":15,"source":26,"type":27},[],[8,9,10,11],{"answer":32,"createTime":5,"id":33,"options":34,"question":37,"source":26,"type":38},[],988744438,[35,36],"对","错","负反馈只能改善反馈环路内的放大性能,对反馈环路之外无效.( )",3,{"answer":40,"createTime":5,"id":41,"options":42,"question":43,"source":26,"type":38},[],988744751,[35,36],"稳压管的稳定电流 IZ若大于实际通过稳压管的电流,则稳压效果不好.( )",{"answer":45,"createTime":46,"id":47,"options":48,"question":49,"source":26,"type":38},[],"2024-06-21 01:05:09",988747264,[35,36],"74LS138是3线—8线译码器,译码为输出低电平有效,若输入为A2A1A0=110时,输出 应为{10111111}.( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":26,"type":59},[],988748060,[54,55,56,57],"允许同时输入两个及以上的有效编码信号","所有的输入信号在底层电路设计时按优先权排序","日常应用中很少使用优先编码器","优先权最高的输入信号优先编码","下列属于优先编码器特点的选项有( )",1,{"answer":61,"createTime":5,"id":62,"options":63,"question":64,"source":26,"type":38},[],988748337,[35,36],"电路中参考点选得不同,各点的电位不同.( )",{"answer":66,"createTime":5,"id":67,"options":68,"question":69,"source":26,"type":38},[],988748704,[35,36],"在多级直耦放大器中,减小每一级的零点漂移都具有同等意义.( )",{"answer":71,"createTime":5,"id":72,"options":73,"question":74,"source":26,"type":38},[],988749482,[35,36],"占空比q是指矩形波高电平持续时间与其周期之比.( )",{"answer":76,"createTime":46,"id":77,"options":78,"question":79,"source":26,"type":38},[],988749909,[35,36],"磨擦是产生静电的主要途径,材料的绝缘性越差,越容易使其磨擦生电.( )"]