用比较级写英语作文
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用比较级写英语作文
答案
In his class,LiMing is taller than the other students .The chairs in his classroom are more than in other classrooms.In English class,he answers more questions than his classmates.But teachers like hi...
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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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