tom eats too much meat and does less exercises,so he is fat.i think he must change now
题目
tom eats too much meat and does less exercises,so he is fat.i think he must change now
hia lifestyle B he lifestile C him lifestyle D him lifestyle
答案
A.his lifestyle.
汤姆吃太多肉类而做太少运动了,所以他体重肥胖.我觉得他应该改变他的生活习惯.
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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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