students in 12th grade are called seniors对划线部分提问,划线部分是seniors
题目
students in 12th grade are called seniors对划线部分提问,划线部分是seniors
what’s meaning of the world ”eraser“改为同一句
答案
what are the students in 12th grade called?
what does the world ”eraser" mean?
举一反三
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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