【多选题】下面论述正确的是( )
A.
对于线性定常系统,原点平衡状态是其唯一的平衡状态
B.
如果线性系统是渐近稳定的,必然是大范围渐近稳定的
C.
如果非线性定常系统是渐近稳定的,必然是一致渐近稳定的
D.
对单输入单输出线性定常系统,矩阵 A 的特征值与该系统的传递函数极点相同
【简答题】College students have a little ways to pay their college fees. Many students have their parents to pay the fees. Some students may apply to a bank loan and others will try to find part-time jobs in an...
【单选题】若B为非终结符,则A→Bα· 为( )项目。
【多选题】线性定常系统的状态空间描述如下所示,其中a是实常量参数【图片】下面论述正确的是( )
D.
当参数 a=-1 时,系统为 BIBO 稳定
【判断题】网络硬件一般包括网络操作系统、网络协议软件、网络管理软件、网络通信软件、网络应用软件五部分组成
【单选题】“ You have upwards of 300 students.” means __.( )
A.
You have over300 students.
B.
You have up to 300 students.
C.
You have less than 300 students.
D.
You have 300 students in total.
【单选题】A number of students ____ seen the film. That is,the number of the students who have seen the film____ large.
【单选题】若 B 为非终结符,则 A→α·Bβ 为 项目。