英语作文 跑步 介绍
题目
英语作文 跑步 介绍
就写一篇关于跑步这项运动的介绍,60字就够了.求求你们限时只有一个半小时,
答案
Benefits of running exercise.Young people are jogging exercise on cardiovascular function,respiratory function and development of great help.Running and there are many types,there are sprint,distance running,such as ultra-long-distance running.跑速different,different from the run,the impact on the human body are also different.Usually long-distance running training is usually early morning or late at night along the road or in the wild environment,this will be in line with air bath,you can cause the brain to rest.On young people,a good training environment change,so that their spirit can be adjusted to direct contact with nature,to learning and social activities in the more energetic,vibrant.
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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