we should go to school on food or by bicycle instead of by private car .这句话有语病吗?
题目
we should go to school on food or by bicycle instead of by private car .这句话有语病吗?
答案
有,instead of taking the car;只能by bus 不能by car
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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