一单位反馈系统的开环Bode图已知,其幅频特性在低频段是一条斜率为的渐近直线,且延长线与0dB线的交点频率为=5,则当输入为0.5 时,其稳态误差为( )
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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