[单选题]In the mid-19th century mathematics was first used to analyze the stability of feedback control systems. ()ZGt答案窝(daanwo.com)-大学生作业答案及考资分享平台
AaccessibilityZGt答案窝(daanwo.com)-大学生作业答案及考资分享平台
BfeasibilityZGt答案窝(daanwo.com)-大学生作业答案及考资分享平台
CflexibilityZGt答案窝(daanwo.com)-大学生作业答案及考资分享平台
Dstability