以healthy habit写一篇80词的作文
题目
以healthy habit写一篇80词的作文
答案
Everybody should keep some healthy habits for their health.Here are some good habits to have,such as,reading,taking exercise,getting up early,and keeping clean.I have all the above mentioned habits myself.I like reading,because reading helps me learn and know more knowledge.I love sports,for sports are necessary for all of us if we want to keep fit.I get up early every morning and have breakfast every day.I keep everything in my room clean.These are some habits I want my friends to have.
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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