teachers:what the said chinese:do well in writing math:hard-woking history:can do better physics:laz
题目
teachers:what the said chinese:do well in writing math:hard-woking history:can do better physics:lazy
答案
From the fact sheet, we can see that the student got various responses from the teachers. As to Maths, he is hard-working.For Chinese, he is thought to do a good job in writing. But when it comes Hist...
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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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