用英文介绍北京一年四季的天气特点
题目
用英文介绍北京一年四季的天气特点
用英文介绍北京一年四季的天气特点 连成一篇四五句话的小作文
答案
Beijing is a very nice place,it was warm in spring,a bit hot in summer,cool in fall and also not very cold in winter!Thoulgh sometimes it will have sandstorms,but the tree planting is still growing,it...
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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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