[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fl8XiPVRx0vDhtS-qq2Sm7O6Xt8NDNP3lgpqfOtiwzGo":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":11,"question":18,"related":19,"source":29,"type":30},[],"2025-12-16 10:30:59",268087772,[8,9,10],"虚轴","实轴","原点",{"count":12,"courseId":13,"courseImg":14,"courseName":15,"workId":16,"workName":17},168,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","exam_168166062","","根轨迹关于()对称",[20,31,34,43,53,60,69,78,87,96],{"answer":21,"createTime":5,"id":22,"options":23,"question":28,"source":29,"type":30},[],268087771,[24,25,26,27],"系统开环传递函数在虚轴上有零、极点时,D形围线需要以无穷小半圆将这些零极点绕过","需要绘制系统开环传递函数关于D形围线的映射曲线","是由辐角原理演化而来的","系统稳定的充分必要条件是开环传递函数关于D形围线的映射曲线不包含-1点","关于Nyquist稳定判据说法错误的是","v1",0,{"answer":32,"createTime":5,"id":6,"options":33,"question":18,"source":29,"type":30},[],[8,9,10],{"answer":35,"createTime":5,"id":36,"options":37,"question":42,"source":29,"type":30},[],268087773,[38,39,40,41],"开环极点","闭环极点","开环零点","闭环零点","根轨迹的起点为",{"answer":44,"createTime":5,"id":45,"options":46,"question":52,"source":29,"type":30},[],268087774,[47,48,49,50,51],"折线图对斜率与相角有近似的对应关系,每&plusmn;20dB\u002Fdec对应&plusmn;90度相角","基本环节对幅频特性对影响都是在转折频率之后","对数幅频特性穿越零分贝线的频率称为系统的截止频率","起始部分形态只由比例和积分环节决定,斜率为积分环节个数乘以-20dB\u002Fdec","纯迟延环节不影响对数幅频特性,只影响对数相频特性","关于复杂系统对数频率特性图,说法错误的有",{"answer":54,"createTime":5,"id":55,"options":56,"question":59,"source":29,"type":30},[],268087775,[57,58],"基本环节乘积表达式","零极点表达式","首一多项式形式的传递函数可以分解因式写成(),对应的增益称为根轨迹增益",{"answer":61,"createTime":5,"id":62,"options":63,"question":68,"source":29,"type":30},[],268087776,[64,65,66,67],"是否含有线性原件","是否稳定","是否存在不确定因素","是否满足线性叠加定理","线性系统与非线性系统的根本区别是",{"answer":70,"createTime":5,"id":71,"options":72,"question":77,"source":29,"type":30},[],268087777,[73,74,75,76],"位置","时间","环境","输入","所谓系统的运动是指系统状态随()变化",{"answer":79,"createTime":5,"id":80,"options":81,"question":86,"source":29,"type":30},[],268087778,[82,83,84,85],"-1,幅频裕量,相频裕量","0,幅频裕量,相频裕量","0,幅值裕量,相角裕量","-1,幅值裕量,相角裕量","对于最小相位系统(开环零极点都位于左半平面),度量闭环系统相对稳定性的方法是用开环特性曲线Nyquist图与点()的接近程度来表征,通常用()和()来度量",{"answer":88,"createTime":5,"id":89,"options":90,"question":95,"source":29,"type":30},[],268087779,[91,92,93,94],"放大倍数,角位移","幅频特性,相频特性","相频特性,幅频特性","增益,相移","系统对输入正弦幅值的影响频率有关称为(),对输入正弦信号相位的影响也与频率有关称为()",{"answer":97,"createTime":5,"id":98,"options":99,"question":104,"source":29,"type":30},[],268087780,[100,101,102,103],"不确定","线性定常","非线性","离散","传递函数适用于()系统"]