Studies reveal that people spent two hours dreaming every night,no matter what they during the day
题目
Studies reveal that people spent two hours dreaming every night,no matter what they during the day
Ashould Bwould have done Cmay have done Dmust do
为什么不选B而选C
答案
因为是将来进行时呀
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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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