题目内容

10

A)By subway.
B)By bus.
C)By car.
D)On foot.

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Thank you for this wonderful farewell party for me.When I'm leaving,nothing is11than tolearn that I am so special.I want everyone here to know that this is the place where I have become theperson I am today.I have learned everything that I needed to learn,and more,from this 12job.Iwant to thank this organization,particularly my director,Mr.Anderson,for giving me the space13,for allowing me to make my own decisions,and then learning from my own 14.As I move on to a world with 15.,I can only say“Thank you,my dear friends”,and I will alwayscherish everything this company has given to me.

16.What ceremony is the speaker addressing?Theceremony of the International Arts Contest.17.What opportunity does the contest provide for young people?A good opportunity totheir creativity.18.How many countries and regions participate in the contest now?.19.What is the theme of the contest for this year?The theme is.20.In what way are the photographic works submitted from overseas?Through the.

一般地说,曲线拟合函数可以是不同的函数类,其中最简单的是( )

A. 一次多项式
B. 幂函数
C. 指数函数
D. 二次多项式
E. 抛物线
F. 二次型

最小二乘曲线拟合的误差有多种形式,常见的有( )

A. 最大误差
B. 平均误差
C. 均方根误差
D. 最小误差平方误差 相对误差

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