<p>某控制系统的结构如题32图所示，已知：<img max-width="300" src="https://learnfile.20230611.cn/learnAppQuestion/23/2f/232f440c0136f379a9b6c75ae2d85bf1.jpg" style="width: 100%;height: auto;"><img max-width="300" src="https://learnfile.20230611.cn/learnAppQuestion/1f/6