our teachers often share their happines and sadness us to.at for with
题目
our teachers often share their happines and sadness us to.at for with
us.前添什么
答案
with
我们的老师经常跟我们分享他们的喜怒哀乐.
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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