The purpose of technology is to make it easier,______it more difficult
题目
The purpose of technology is to make it easier,______it more difficult
1.not make
2.not to make
3.making not
4.do not make
要原因
答案
2,固定用法,to ...not to ...
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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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