China has brought in much technology and foreign money to develop her economy.
题目
China has brought in much technology and foreign money to develop her economy.
这句话如何改主动为被动
紧急...
答案
much technology and foreign money have been brought in China to develop her economy.
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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