【判断题】【消耗次数：1】
系统函数方块图中，各环节串联后的传递函数，等于各个串联环节传递函数之和。
①
正确
②
错误
参考答案：
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相关题目
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关于传递函数，错误的说法是（）
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传递函数只适用于线性定常系统；
②
传递函数不仅取决于系统的结构参数，给定输入和扰动对传递函数也有影响；
③
传递函数一般是为复变量s的真分式；
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闭环传递函数的极点决定了系统的稳定性。
【多选题】
以下关于传递函数的叙述，正确的是（）
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A传递函数能描述任意的线性系统
②
B求取系统的传递函数时，要求系统处于零初始条件
③
C传递函数给出了输出量拉普拉斯变换与输入量拉普拉斯变换比
④
D通常，单输入、单输出线性定常系统的传递函数和微分方程是一一对应的
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