He get on his bike and (ride) quickly down the road.
题目
He get on his bike and (ride) quickly down the road.
答案
什么问题呢?
He gets on his bike and rides quickly down the road.(一般现在时)
He got on his bike and rode quickly down the road.(一般过去时)
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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