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【多选题】
典型系统单位阶跃响应如图所示,可以确定该系统A.
是的欠阻尼系统
B.
开环增益 K =2
C.
超调量σ％= 40％
D.
调节时间
E.
是0型系统
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举一反三
【多选题】小儿身高增长的规律是
A.
连续性、不匀称性生长
B.
生长模式分为胎儿生长和出生后生长
C.
三个时相生长模式，即婴儿相，儿童相和青春期相
D.
生长是速度不同，在生长速度变化时会有一点间断
E.
有两个生长高峰
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A.
It underestimates the importance of talent and ability.
B.
It undermines our faith in education.
C.
It is a blasphemy to the Grace of god.
D.
It is too sweet in that everybody can realize their American dream.
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