模糊集合是对普通集合的扩展，它将m=0或m =1的取值范围扩大到在[0, 1]整个闭区间上的___________，记作http://edu-image.nosdn.127.net/F4402B02F728258093E85069D9E2430C.png?imageView&thumbnail=890x0&quality=100，称为隶属函数。http://edu-image.nosdn.127.net/15CD63239CEAE16D1B07D6567F552946.png?imageView&thumbnail=890x0&quality=100的大小反映了元素x对于模糊集合http://edu-image.nosdn.127.net/03F3F3DBF73AC889513956FEFFEE7FAD.png?imageView&thumbnail=890x0&quality=100的___________。

中国大学MOOC: http://edu-image.nosdn.127.net/8E989C885179CAD3E88F4ED14999CEF9.jpg?imageView&thumbnail=890x0&quality=100http://edu-image.nosdn.127.net/270D935AC13F8AC30775CB323882970C.jpg?imageView&thumbnail=890x0&quality=100http://edu-image.nosdn.127.net/E8F4932FC8C534FE91D7CCBE9744E7AD.jpg?imageView&thumbnail=890x0&quality=100

<img src="http://edu-image.nosdn.127.net/7C967829F4C605BD5700F98BFAF57A1B.jpg?imageView&thumbnail=890x0&quality=100" />? 错误|错误|错误|<img src="http://edu-image.nosdn.127.net/FB19BA6F6B1487CE68F33429508760F3.jpg?imageView&thumbnail=890x0&quality=100" />

中国大学MOOC: 若第9题中当电路中总电压http://edu-image.nosdn.127.net/45D53DF610EBF196EBE5238589C91ABF.png?imageView&thumbnail=890x0&quality=100，http://edu-image.nosdn.127.net/8232D55E2C1346F746EFBB0780167F51.png?imageView&thumbnail=890x0&quality=100，http://edu-image.nosdn.127.net/A2CC3366BF7376F66D8EFFEB40B97149.png?imageView&thumbnail=890x0&quality=100，以下叙述正确的是

一阶低通和高通滤波电路的特征频率http://edu-image.nosdn.127.net/7E7F1055858242AC1846E34707EA3848.png?imageView&thumbnail=890x0&quality=100与通带截止频率http://edu-image.nosdn.127.net/5EC1781C90A066C15C4A6AFF6EF983C2.png?imageView&thumbnail=890x0&quality=100相等；而高阶低通和滤波电路的http://edu-image.nosdn.127.net/3ED720FB1F05ABA1F9079DE5B7F791B8.png?imageView&thumbnail=890x0&quality=100http://edu-image.nosdn.127.net/F711F7FB9E8D3C851ACAABB02F5C6EE7.png?imageView&thumbnail=890x0&quality=100http://edu-image.nosdn.127.net/865F0785FF3D04AFFC7A9E21B34598FD.png?imageView&thumbnail=890x0&quality=100。