[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$faA_GkxjmaAukKJG6pfIDxGXE8MRxA2LZOpb6s-Zz2uM":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2025-06-24 18:35:50",207691121,[8,9,10,11],"无余弦分量","无正弦分量","仅有基波和偶次谐波分量","仅有基波和奇次谐波分量",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},41,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","a09097756bfa4cd6b8fccc8fc94b6923","作业三","某周期奇谐函数,其傅里叶级数中()",[21,33,42,50,60,69,79,88,97,106],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2025-06-24 18:35:47",207691103,[26,27,28,29],"600Hz","300Hz","33.3Hz","100Hz","限带信号f(t)的最高频率为100Hz,若对f(3t)进行时域取样,则奈奎斯特取样率()","v1",0,{"answer":34,"createTime":23,"id":35,"options":36,"question":41,"source":31,"type":32},[],207691104,[37,38,39,40],"零输入响应","零状态响应","自由响应","强迫响应","系统初始状态为零,仅由激励引起的响应为()",{"answer":43,"createTime":23,"id":44,"options":45,"question":49,"source":31,"type":32},[],207691105,[46,47,48,37],"单位冲激响应","单位阶跃响应","单位斜变响应","系统的零状态响应等于激励与()之间的卷积",{"answer":51,"createTime":52,"id":53,"options":54,"question":59,"source":31,"type":32},[],"2025-06-24 18:35:48",207691107,[55,56,57,58],"回路电流法","节电电位法","微积分法","元件的VCR","时域分析中,必须首先建立LTI系统的微分方程,其建立的依据除KCL、KVL外,还有()",{"answer":61,"createTime":52,"id":62,"options":63,"question":68,"source":31,"type":32},[],207691111,[64,65,66,67],"等幅的正弦振荡分量","衰减的正弦振荡分量","阶跃函数分量","衰减的指数分量","若系统函数有两个极点在虚轴上,当激励为单位冲激函数时,响应中含有()",{"answer":70,"createTime":71,"id":72,"options":73,"question":78,"source":31,"type":32},[],"2025-06-24 18:35:49",207691115,[74,75,76,77],"不变","变窄","变宽","与脉冲宽度无关","若矩形脉冲信号的宽度加宽,则它的频带宽度()",{"answer":80,"createTime":71,"id":81,"options":82,"question":87,"source":31,"type":32},[],207691116,[83,84,85,86],"左半平面","右半平面","虚轴上","实轴上","若H(s)的极点均在(),则该系统必是稳定的因果系统",{"answer":89,"createTime":71,"id":90,"options":91,"question":96,"source":31,"type":32},[],207691118,[92,93,94,95],"单位阶跃响应,时域特性","单位阶跃响应,频率特性","单位冲击响应,时域特性","单位冲击响应,频率特性","频域系统函数就是系统()的傅里叶变换,描述了系统的()",{"answer":98,"createTime":71,"id":99,"options":100,"question":105,"source":31,"type":32},[],207691119,[101,102,103,104],"能量E=0","功率P=0","能量E=&infin;","功率P=&infin;","能量信号其()",{"answer":107,"createTime":5,"id":6,"options":108,"question":19,"source":31,"type":32},[],[8,9,10,11]]