英语翻译
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英语翻译
Everybody can suffer from stress ,No matter what your age is , you can feel stressed out by things that are happening in your life. Teenagers, however, have more opportunities to get stressed than people in any other age group. Being a teenager is hard. You are not a child any more, but you are not an adult, even though you hve to deal with some very grown-up problems and decisions.Families can be one of the biggest causes of stress, such as problems with parents or problems with brothers and sisters. Teenagers also have
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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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