[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fkByejNOBvF0ONo226WP6wRHMr0mGxbekwpF7NC0vG28":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2025-06-15 14:49:33",201055707,[8,9,10,11],"单位阶跃","单位脉冲","单位斜坡","正弦",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},57,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_44155049","在线作业3","频率特性定义为,零初始条件下,( )输入作用下,系统稳态输出与输入的复数比",[21,33,42,51,60,69,78,87,90,99],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2025-06-15 14:49:32",201055692,[26,27,28,29],"-1","1","π\u002F2 (k=0,± 1, ±2,…)","π (k=0, ±1, ±2,…)","根轨迹上的点应满足的幅角条件为∠G(s)H(s)=( )","v1",0,{"answer":34,"createTime":5,"id":35,"options":36,"question":41,"source":31,"type":32},[],201055694,[37,38,39,40],"-w2+jw+2","-jw2+jw+2","-jw+jw+2","w2+jw+2","已知G(s)=s2+s+2,则G(jw)=( )",{"answer":43,"createTime":5,"id":44,"options":45,"question":50,"source":31,"type":32},[],201055696,[46,47,48,49],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6bdb8e7739797abcab7dc52cb3bbf908.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F084ee9f0893c3317d2922830048ddf5b.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8a8beb22f0ff0e33be088673ef77ed17.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4535067016aeb62248d000b3ea2a10fd.png\">","已知G(s)=\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc51e2dbca4d1259f2e374d5793689ac3.png\">,则G(jw)=( )",{"answer":52,"createTime":5,"id":53,"options":54,"question":59,"source":31,"type":32},[],201055698,[55,56,57,58],"K","jw","1\u002Fjw","","积分环节的频率特性为()",{"answer":61,"createTime":5,"id":62,"options":63,"question":68,"source":31,"type":32},[],201055700,[64,65,66,67],"lgw2-lgw1","lgw2\u002Flgw1","w2-w1","lg(w2-w1)","在半对数坐标系种,假设横轴上有两点w1、w2,且w1<w2,则两点间距离为( )",{"answer":70,"createTime":5,"id":71,"options":72,"question":77,"source":31,"type":32},[],201055702,[73,74,75,76],"解析","分析","图解","计算","频率特性法是一种( )法",{"answer":79,"createTime":5,"id":80,"options":81,"question":86,"source":31,"type":32},[],201055704,[82,83,84,85],"\u002F(3*(s+2))","\u002F(6*(0.5s+1))","\u002F(3s+1)","\u002F(s+6)","G(s)=(2s+5)\u002F(3s+6),变为时间常数形式是( )",{"answer":88,"createTime":5,"id":6,"options":89,"question":19,"source":31,"type":32},[],[8,9,10,11],{"answer":91,"createTime":5,"id":92,"options":93,"question":98,"source":31,"type":32},[],201055708,[94,95,96,97],"5%或2%","±5%或±2%","±5%或±10%","+5%或-2%","稳态值的误差带通常取稳态值附近( )的范围",{"answer":100,"createTime":5,"id":101,"options":102,"question":107,"source":31,"type":32},[],201055711,[103,104,105,106],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F485f6653c3c2e26548bd453492a8d252.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0282470b822ec9fa2d404728867d7c3b.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F34b56542e5eb961f201b55d5db785fc9.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F27c080e45f4b8ee9f4e8c51e798a8c92.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe5270bcd37ec3c6797d0bb0c4ac26f7a.png\">变为零极点形式是( )"]