She ran very fast but it __(is) too late 用正确形式填空
题目
She ran very fast but it __(is) too late 用正确形式填空
in face,the sun is ___(big) thing in our solar system.
my ____(pencil) are in the pencil box.
there are some flowers on the ___(teacher) deak.
it's bad for your __(eye)
答案
was
the biggest
pencils
teachers'
eyes
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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