用英语介绍南京的名胜古迹,50词左右(采用为答案后还会有追加分)
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用英语介绍南京的名胜古迹,50词左右(采用为答案后还会有追加分)
答案
Now i will introduce a famous place in Nanjing,we call it the Rampart of Nanjing.it was built in 1386,so it had a very history.but what a pity ,some of it had been destoried in the past.in nowdays,our...
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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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