The town has changed beyond ______ since I was last here.
A. recognize
B. recognition
C. recognizable
D. recognized
查看答案
This is one of the most _____ aspects of the cime
A. puzzle
B. puzzling
C. puzzled
D. puzzlement
下列哪些因素决定系统的稳态误差？
A. 系统型别
B. 输入信号的形式
C. 输入信号的幅值
0型系统可以无误差跟踪阶跃信号。
A. 对
B. 错
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