People had to sleep and eat on the p____ for several days after the earthquake happened in Yushu.
题目
People had to sleep and eat on the p____ for several days after the earthquake happened in Yushu.
He felt u____ because he argued with his best friend just now
答案
playground unhappy
这两个答案我觉得意思是对的,如果觉得不对的话还是可以参考一下的
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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