The Ministry of Agriculture has allocated 140 million yuan and taken other measures to help farmers
题目
The Ministry of Agriculture has allocated 140 million yuan and taken other measures to help farmers get back on their feet.
on their
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字面意思是"双脚站立起来"
这里的意思是"自立"
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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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