During the summer vacation I think I should do something meaningfully instead of touring 改错
题目
During the summer vacation I think I should do something meaningfully instead of touring 改错
有两处错误的。
答案
meaningfully改成meaningful就可以了,要用形容词修饰something而不是副词 ,但是暑假用summer vacation是没有错误的哦
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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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