振荡环节传递函数的标准形式为 当ω n 确定时,系统的频率特性与 的取值有关。用MATLAB绘出ω n =1时,在不同 取值下,系统的伯德图和斯特图。
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【单选题】13 Carrefour has been more successful than Walmart in Europe, whereas Walmart has been more successful than Carrefour in the United States. What is the most likely reason for these results?