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【简答题】
f(x)是周期为2的奇函数，且在[0，1]上的表为f(x)=x(1-x)，将f(x)展开为叶级数．并求级数 之和．
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反馈参考答案：
举一反三
【判断题】According to the author, European regulators are unlikely to go after every technology firm with a big market share. One of the reasons is that there are not so many large computer platforms like Wind...
A.
正确
B.
错误
【简答题】改错:把修改的部分按序号写到下列空中 1) My mother told me what it was the purpose of our visit. 2) Tell the taxi driver where do you want to go. 3) He asked me what did I intend to do after graduation? 4) What does a p...
【多选题】What are the characteristics of the period of New Romantics?
A.
It occured in the American clubs.
B.
It was very noticeable and attractive.
C.
It was featured fancy shirts and blouse
D.
Jeans were popular.
【单选题】Which of the following is NOT implied in the passage?
A.
Not to save energy could lead to serious consequences ．
B.
Energy saving cannot go together with economic growth ．
C.
Energy saving efforts can be painful but positive ．
D.
Denmark is a powerful leader in the global wind market ．
【判断题】According to the author, European regulators are unlikely to go after every technology firm with a big market share. One of the reasons is that there are not so many large computer platforms like Wind...
A.
正确
B.
错误
【单选题】Which of the following is NOT true according to the text?
A.
There is no correlation between a country's economic growth and the returns to investors.
B.
Investors are possibly the reason for the turbulence of emerging markets.
C.
Investors go with the tide unwillingly in the emerging markets.
D.
Few of the companies are not listed in the stock market.
【简答题】B女生是某市的一名初三学生，共青团员，学生干部。初二时，B同学学习成绩名列年级前三名，进入初三后，由于家长、老师对她考取市级重点中学寄予厚望，给她造成了很大的心理压力。她起早贪黑，比初二时更加用功，但成绩反而下降。原因是考试时经常出现腹痛，心跳加剧，难以自控，导致考试发挥失常。现在，B同学表现出明显的考试焦虑，每到考试就会出现一系列的不良反应。非考试时间，总担心考试时出现状况，整体情绪低落，心情焦...
【简答题】What is the name of a short period of heavyrain? A. ashowerB. rainC. puddlesD. sunshine
【简答题】What is the period of a 1.0-m-long pendulum on (a) the earth and (b) Venus?
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