people are trying to stop pollution from cars ,one way is to make green cars .but it ()much to

people are trying to stop pollution from cars ,one way is to make green cars .but it ()much to

题目
people are trying to stop pollution from cars ,one way is to make green cars .but it ()much to
make these cars.A takes B spends C pays D costs.要说为什么?
答案
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
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
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