[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fXFN4kPsr8txx1rUa3TCABfzdVQkfkRSp24Qf69QPIdQ":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":11,"question":15,"related":16,"source":27,"type":28},[],"2024-01-05 23:26:30",127794475,[8,9,10],"大于","小于","等于",{"courseId":12,"courseImg":13,"courseName":14},"ec5c8d2775bacf992aef544f4624afd7","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0d27132e8e4c25614916fe2373258c2e.jpg","模拟电子技术","在P型半导体中,自由电子浓度( )空穴浓度",[17,29,38,47,50,59,68,77,86,95],{"answer":18,"createTime":19,"id":20,"options":21,"question":26,"source":27,"type":28},[],"2024-01-05 23:26:29",127794454,[22,23,24,25],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbeb5b6865fba136115279682e318da44.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F91d4446e1fee224f0c126c3b51491ae0.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F65fff6b628dd04086da598538e9f1b8d.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fef19bc86843400f2391c8a5de1135dbc.png\">","RC串并联正弦波振荡电路的振荡频率为( )","v1",0,{"answer":30,"createTime":19,"id":31,"options":32,"question":37,"source":27,"type":28},[],127794458,[33,34,35,36],"正反馈与负反馈","线性与非线性","虚断和虚短","不确定","集成运放一般工作在两个区域,它们分别是( )区",{"answer":39,"createTime":19,"id":40,"options":41,"question":46,"source":27,"type":28},[],127794464,[42,43,44,45],"供电电源","外界环境","晶体管的参数","选频网络","振荡器的振荡频率取决于( )",{"answer":48,"createTime":5,"id":6,"options":49,"question":15,"source":27,"type":28},[],[8,9,10],{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":27,"type":28},[],127794477,[54,55,56,57],"并联","电流","电压","串联","为了使放大器带负载能力强,一般引入( )负反馈",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":27,"type":28},[],127794480,[63,64,65,66],"电流大电阻大","电流小电阻小","电流大电阻小","电流小电阻大","半导体二极管加正向电压时,有( )",{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":27,"type":28},[],127794488,[72,73,74,75],"电压串联负反馈","电压并联负反馈","电流串联负反馈","电流并联负反馈","某仪表放大电路,要求Ri大,输出电流稳定,应选( )",{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":27,"type":28},[],127794491,[81,82,83,84],"交流电流","交流串联","交流并联","交流电压","在放大电路中,为了增大输入电阻,可引入( )负反馈",{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":27,"type":28},[],127794498,[90,91,92,93],"UO=0.45U2","UO=0.9U2","UO=1.2U2","UO=1.4U2","在单相全波整流(无滤波时)电路中,输出电压的平均值UO与变压器副边电压有效值U2应满足( )关系",{"answer":96,"createTime":5,"id":97,"options":98,"question":103,"source":27,"type":28},[],127794510,[99,100,101,102],"(E、C、B)","(C、B、E)","(B、C、E)","(C、E. B)","用直流电压表测得放大电路中某三极管各极电位分别是2V、6V、2.7V,则三个电极分别是( )"]