请你用英文写篇短文,谈谈骑自行车旅游的好处
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请你用英文写篇短文,谈谈骑自行车旅游的好处
内容必须包括以下要点.一、廉价的交通方式.二、益于身心健康.三、利于环保
答案
Travel by Bike There are many ways of traveling, People may travel by plane if they want to travel far and reach their destination in a shorter time. It is the most comfortable but expensive way.M...
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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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