这句语法有错误,

这句语法有错误,

题目
这句语法有错误,
Its development including the establishment and maintenance of the database and front-end application development in two areas.
还有这一句
In this paper,the library management system to meet the lending,and the need for the two managers.
答案
Its development includ the establishment and maintenance of the database and front-end application development in two areas.
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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.
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