两输入<img src="http://jgxm-question.oss-cn-beijing.aliyuncs.com/psst/files/370250c1dfd04926872ce9f848ecfcbc.png?x-oss-process=image/sharpen,200"/>，两输出<img src="http://jgxm-question.oss-cn-beijing.aliyuncs.com/psst/files/593871e4f276479d8ae61b08f607db97.png?x-oss-process=image/sharpen,200"/>的系统，其模拟结构图如图1-30所示，其状态空间表达式为：（）<br/> <img src="http://jgxm-question.oss-cn-beijing.aliyuncs.com/psst/files/5ae7d9e3bba74d5c90e8afcd5980c9c0.png?x-oss-process=image/sharpen,200"/>