She reached at the glass,but it had dropped
题目
She reached at the glass,but it had dropped
reached at?
答案
She reached at the glass,but it had dropped.
意思是：她触及到了玻璃,但它已经掉落了.
reached at 意思是“触及到”.
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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