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【单选题】
自动控制系统的类型中，( )的主要特点是给定信号的变化规律是事先不能确定的随机信号。A.
恒定控制系统
B.
线性系统
C.
随动控制系统
D.
非线性系统
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举一反三
【判断题】What does knowing a word involve? Knowing a word means knowing its pronunciation and stress; Knowing a word means knowing its spelling and grammatical properties; Knowing a word means knowing its orig...
A.
正确
B.
错误
【判断题】What does knowing a word involve?Knowing a word means knowing its pronunciation and stress;Knowing a word means knowing its spelling and grammatical properties;Knowing a word means knowing its ts orig...
A.
正确
B.
错误
【简答题】What does knowing a word involve? Knowing a word means knowing its _____ and _____ ; Knowing a word means knowing its _____ and _____ ; Knowing a word means knowing its _____ ;
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