Mr Green was reading a newspaper when he heard his wife crying in the mext room.翻译成英语
题目
Mr Green was reading a newspaper when he heard his wife crying in the mext room.翻译成英语
答案
当格林先生听到他妻子在隔壁房间的叫声时,他正在读一份报纸.
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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