找一篇英语新闻
题目
找一篇英语新闻
答案
On January 19, 2008 evening 10 o'clock, had the fire in the white clouds guesthouse 9 buildings, the fire has continued about for 3 hours, altogether has come more than 30 firemen.
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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