2024知到答案 信号与系统(广州大学) 最新智慧树满分章节测试答案
第一章 单元测试
1、单选题:
若 为系统的输入信号, 为系统的零状态响应,则下列系统中( )是非时变系统。
选项:
A:.w66685962255s .brush0 { fill: rgb(255,255,255); } .w66685962255s .pen0 { stroke: rgb(0,0,0); stroke-width: 1; stroke-linejoin: round; } .w66685962255s .font0 { font-size: 406px; font-family: "Times New Roman", serif; } .w66685962255s .font1 { font-style: italic; font-size: 260px; font-family: "Times New Roman", serif; } .w66685962255s .font2 { font-style: italic; font-size: 406px; font-family: "Times New Roman", serif; } .w66685962255s .font3 { font-size: 373px; font-family: Symbol, serif; } .w66685962255s .font4 { font-weight: bold; font-size: 76px; font-family: System, sans-serif; } []0.5[] k ykxk =
B:
C:.w66685962275s .brush0 { fill: rgb(255,255,255); } .w66685962275s .pen0 { stroke: rgb(0,0,0); stroke-width: 1; stroke-linejoin: round; } .w66685962275s .font0 { font-size: 406px; font-family: "Times New Roman", serif; } .w66685962275s .font1 { font-style: italic; font-size: 406px; font-family: "Times New Roman", serif; } .w66685962275s .font2 { font-size: 373px; font-family: Symbol, serif; } .w66685962275s .font3 { font-weight: bold; font-size: 76px; font-family: System, sans-serif; } ()() yttxt =
D:.w66685962232s .brush0 { fill: rgb(255,255,255); } .w66685962232s .pen0 { stroke: rgb(0,0,0); stroke-width: 1; stroke-linejoin: round; } .w66685962232s .pen1 { stroke: rgb(0,0,0); stroke-width: 19; stroke-linejoin: round; } .w66685962232s .font0 { font-size: 406px; font-family: "Times New Roman", serif; } .w66685962232s .font1 { font-style: italic; font-size: 406px; font-family: "Times New Roman", serif; } .w66685962232s .font2 { font-size: 373px; font-family: Symbol, serif; } .w66685962232s .font3 { font-weight: bold; font-size: 76px; font-family: System, sans-serif; } () ()2 dxt yt dt =
答案: 【.w66685962232s .brush0 { fill: rgb(255,255,255); } .w66685962232s .pen0 { stroke: rgb(0,0,0); stroke-width: 1; stroke-linejoin: round; } .w66685962232s .pen1 { stroke: rgb(0,0,0); stroke-width: 19; stroke-linejoin: round; } .w66685962232s .font0 { font-size: 406px; font-family: "Times New Roman", serif; } .w66685962232s .font1 { font-style: italic; font-size: 406px; font-family: "Times New Roman", serif; } .w66685962232s .font2 { font-size: 373px; font-family: Symbol, serif; } .w66685962232s .font3 { font-weight: bold; font-size: 76px; font-family: System, sans-serif; } () ()2 dxt yt dt =】点我阅读全文