急求Essay的第二部分怎么写?
题目
急求Essay的第二部分怎么写?
Structure ..of the travel,tourism and hospitality industries with appropriate example of vertical and horizontal integration ,
答案
i think vertical integration means the agglomeration of an industry chain,including,let's say,hotel (accommondation),restaurant (food and bererages),casino (recreation) and so one.
whereas horizontal inegration suggests the merging between firms at the same stage of production/service.For instance,the merging between two hotels?so you can look for recent cases on this on internet now?
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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