our summer holiday is _about_two_months_long._ 对划线部分提问 ___ the ___ of your summer holiday?
题目
our summer holiday is _about_two_months_long._ 对划线部分提问 ___ the ___ of your summer holiday?
There were no students on the beach.同义句转换
___ ___ the students were on the beach.
答案
what's the length of your summer holiday?
none of the students were on the beach.
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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