求一篇 关于家长让孩子独立的英文作文
题目
求一篇 关于家长让孩子独立的英文作文
答案
Today in China,many families have only one child.So the children usually doted upon by all family members.Gradually some of them get used to depending on their parents and lack the ability to solve pr...
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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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