[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fLGJmQPMBZ4FA0gt4YyvlwJmwachhGc_DV-M2vSVbc7M":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-12-17 18:36:41",270268172,[8,9,10,11],"t的取值连续,f(t)的取值连续","t的取值离散,f(t)的取值离散","t的取值离散,f(t)的取值连续","t的取值连续,f(t)的取值离散",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},19,"984924411a93cd36fe1b281cd570577c","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7c14dc025e1f6944d05e8ee98b498ac2.png","信号处理与系统","exam_167572179","2025下----阶段性测试2","连续信号f(t)是指以下哪种信号( )",[21,32,41,50,59,68,77,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],270268166,[25,26,27,28],"输入信号的形式","系统微分方程的特征根","系统的初始状态","系统的特解","系统的自由响应模式取决于","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],270268167,[36,37,38,39],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F453a04a909db12b97ae63154568b1676.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4d32d5c4fc631ce5e115e199c3470d0d.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F722c9c62b24d4182cdc3d7de855e4a95.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F97dae9fdcad0e0058e6e961afaf8b5e6.png\">","已知\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F12becbcef9d90a974bfdcb4b8a638f7b.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F66899d38b5fcbbf82b699966be58a291.png\">,可以求得\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F770f560432b4d1f8486e9e70c418dfcb.png\">( )",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],270268168,[45,46,47,48],"连续性、非谐波性、收敛性","离散性、谐波性、收敛性","连续性、谐波性、收敛性","离散性、非谐波性、发散性","周期信号的频谱所具有的三个基本特点是( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],270268169,[54,55,56,57],"0","2","1","-2","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9394d66f75830f6aec51c68772703a09.png\">,属于其极点的是( )",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],270268170,[63,64,65,66],"线性系统","时不变系统","稳定系统","因果系统","某系统的系统函数为H(s),若同时存在频率响应函数\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd4f2151e9de403e3edc9747388038149.png\">,则该系统必须满足条件( )",{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":30,"type":31},[],270268171,[72,73,74,75],"它们总是相等的","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6d42eb788ddd5307c8cc248e2ab11046.png\">是输入接入后的状态,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa2af277f3f45c02aa7d9773363e8b744.png\"> 是输入接入前的状态","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6d42eb788ddd5307c8cc248e2ab11046.png\">是输入接入前的状态,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa2af277f3f45c02aa7d9773363e8b744.png\"> 是输入接入后的状态","它们总是无关的","初始状态 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6d42eb788ddd5307c8cc248e2ab11046.png\"> 和初始值 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa2af277f3f45c02aa7d9773363e8b744.png\"> 的区别在于",{"answer":78,"createTime":5,"id":6,"options":79,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],270268173,[84,85,86,87],"信号相乘","一个信号相对于另一个信号进行反褶、平移并求乘积的积分","信号相加","信号的微分","两个信号\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F169061eaba63d423601fa763c7f872da.png\">和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F92894c4d11166bd637e2ef347d44fbb8.png\">进行卷积计算,即\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd7083624c37223df5db223653d192555.png\">,其几何意义是( )",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],270268174,[93,94,95,96],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8930dfb4cc213ec72bc0c81212bd8e4d.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe57b83565604b95f68f57f4e8c54d91b.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa5ea42beca3578edbf6403027ffcb726.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff45101ef5cb3efc0e9c8f58408d8952e.png\">","关于单位冲激函数\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4d2cb70051fe4432fdc2c236f4923fd6.png\">,以下说法正确的是( )",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],270268175,[102,103,104,105],"100Hz","200Hz","150Hz","50Hz","对最高频率为50Hz的模拟信号进行抽样,不发生频谱混叠的最小抽样频率为( )"]