2022大学慕课答案 2020春 英语电影视听说(威海-程丽)(山东大学) 最新大学MOOC满分章节测试答案
本答案对应课程为:点我自动跳转查看
本课程起止时间为:2020-04-20到2020-06-21
本篇答案更新状态:已完结
Module 1 Mona Lisa Smile Quiz 1
1、 问题:Which is NOT true about Betty Warren?
选项:
A:She is an influential and conservative girl before meeting Miss Watson.
B:Her happy marriage proves the success of women’s education in the 1950s.
C:She is critical of Miss Watson on several occasions.
D:Her self-awareness is gradually awakened.
答案: 【Her happy marriage proves the success of women’s education in the 1950s.】 点我阅读全文
(1)当ωn=10,ξ= 0,0.5, 0.7,1,2,时,要求用MATLAB画出5条阶跃响应曲线,并进行对比。(2)当ωn=1,2,3,ξ= 0.5时,要求用MATLAB画出3条阶跃响应曲线,并进行对比。
对二阶系统的影响。代码完整实现4分,不完整3分。运行结果1分。wn=10;t=[0:0.01:10];for ksai=[0,0.5,0.7,1,2] G1= tf(wn^2,[1,2wnksai,wn^2]) step(G1,t);hold on;end
对二阶系统的影响。代码完整实现4分,不完整3分。运行结果1分。