[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f7PseGfjonFT5PJ7kU48c5rP4Zj5z99d4B0kpaBJY6Qg":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2025-11-27 04:10:06",242782496,[8,9,10,11],"20℃时为1","20℃时为2","20℃时为2.5","20℃时为4",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},340,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_48488078","向量","大修后35KV以上的油浸式电压互感器一次绕组连同套管的介质损耗系数tgδ值应为( )",[21,26,35,44,53,62,71,80,89,98],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],242782497,[30,31,32,33],"正值","熟练的","运行值班","对设备较为熟悉","倒闸操作必须由两人执行,其中由(CD )的一人作监护人;特别重要或复杂的倒闸操作,由()值班员操作,值班负责人或值长监护",{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],242782498,[39,40,41,42],"40%","35%","50%","45%","单管甲类功率放大器的最大功率转换效率是( )",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":24,"type":25},[],242782499,[48,49,50,51],"0.8%","0.5%","0.2%","0.9%","油纸介质电容运行中tgδ不应大于( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":24,"type":25},[],242782500,[57,58,59,60],"5.3mA","6mA","0","∞","已知某三极管的集电极电阻RC=1KΩ,电源电压UGB=6V,三极管的发射极直接接地,则三极管截止时的集电极电流IC为( )",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":24,"type":25},[],242782501,[66,67,68,69],"四","一","二","三","油断路器在交接验收时应进行操作试验,一般在直流母线额定电压值下进行分、合闸操作各( )次",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":24,"type":25},[],242782502,[75,76,77,78],"1.3~1.5m","0.9~1.1m","0.6~0.9m","1.1~1.3m","安装铁壳开关高度以操作方便和安全为原则,一般距地面高度为( )",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":24,"type":25},[],242782503,[84,85,86,87],"电压放大倍数近似为1,没有电压放大作用,也没有电流放大作用","频率响应好,稳定性好","输入电阻大,输出电阻小","输出电压与输入电压同相位","下列不属于射极输出器特点的是( )",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":24,"type":25},[],242782504,[93,94,95,96],"安","伏安","享","安\u002F米","下列( )是磁场强度的单位",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":24,"type":25},[],242782505,[102,103,104,105],"φ=NI\u002Fμs","φ=NIμs\u002FL","φ=B\u002FS","φ=BS","磁路欧姆定律的正确表达式为( )"]