【判断题】非线性系统中,系统的稳定性只取决于系统的结构和参数,而与输入信号及初始条件无关
【单选题】Not believing their eyes, the visitors on the spot_______ the flying plane, doing some most difficult and dangerous tricks in the sky. [ ]
【单选题】线性系统的稳定性与输入信号和初始条件( ),非线性系统平衡状态的稳定性与系统初始条件( )。
【单选题】Why was the survey based on the scores of a math exam?
A.
Because math was the most difficult course.
B.
Because it was a federal exam and is fair.
C.
Because math could reflect the teaching quality in a better way.
D.
Because all students took the math exam.
【单选题】The exercise is not difficult but just needs care and patience.
【单选题】—Do you like math ? ---Yes ,but I think it’s _________subject of all.
【单选题】非线性系统的稳定性和动态性能与下列哪项因素有关? ( )
【单选题】Ingrid played the part of Ilsa Lund in Casablanca which made her go over the most difficult situation of her career.