[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fDnb-JPcd0e1-l03FZ8Ic3hZijuE_OQrvQtPKeqdRCKU":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":27,"type":79},[],"2024-11-10 23:33:25",165378256,[8,9,10,11],"RC振荡器","LC振荡器","晶体振荡器","改进型LC振荡器",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},17,"42670dbe4d1bec3879cc984aafc82047","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd1bbfc280dc4352043937faf104afcb0.png","电子系统设计","d9805a60689b4bfd96275289bd9a1bc6","第5章 章节测验","从频率稳定度要求来考虑,()稳定度最高",[21,29,34,43,52,61,70,80,85,88],{"answer":22,"createTime":5,"id":23,"options":24,"question":26,"source":27,"type":28},[],165378248,[8,9,10,25],"反馈型振荡器","按选频回路采用的器件可分为()","v1",1,{"answer":30,"createTime":5,"id":31,"options":32,"question":33,"source":27,"type":28},[],165378249,[8,9,10,11],"从工作频段考虑,高频段应选用()",{"answer":35,"createTime":5,"id":36,"options":37,"question":42,"source":27,"type":28},[],165378250,[38,39,40,41],"振荡频率和频率稳定度","振荡幅度和幅度稳定度","波形纯正度","输入电阻","信号发生电路的主要性能指标有()",{"answer":44,"createTime":5,"id":45,"options":46,"question":51,"source":27,"type":28},[],165378251,[47,48,49,50],"放大电路","正反馈网络","选频网络","稳幅环节","正弦波振荡电路一般由()的组成",{"answer":53,"createTime":5,"id":54,"options":55,"question":60,"source":27,"type":28},[],165378252,[56,57,58,59],"74HC14","电阻","电容","电感","施密特IC方波振荡电路由( )组成",{"answer":62,"createTime":5,"id":63,"options":64,"question":69,"source":27,"type":28},[],165378253,[65,66,67,68],"基准电压","比较器","基本RS触发器","驱动器和放电开关","定时器CC7555的内部电路由()4部分构成",{"answer":71,"createTime":5,"id":72,"options":73,"question":78,"source":27,"type":79},[],165378254,[74,75,76,77],"正确地选择有源器件","正确地计算元件参数值","合理地选择振荡电路形式","电源电路的选择","下列哪个选项不是设计振荡电路的主要任务()",0,{"answer":81,"createTime":5,"id":82,"options":83,"question":84,"source":27,"type":79},[],165378255,[8,9,10,11],"从频率稳定度要求来考虑,()稳定度最低",{"answer":86,"createTime":5,"id":6,"options":87,"question":19,"source":27,"type":79},[],[8,9,10,11],{"answer":89,"createTime":5,"id":90,"options":91,"question":92,"source":27,"type":79},[],165378257,[8,9,10,11],"从工作频段考虑,低频段应选用()"]