改成一般疑问句:1.They went to harbin by plane .2 i saw elephants last weekend .
题目
改成一般疑问句:1.They went to harbin by plane .2 i saw elephants last weekend .
3.we took some pictures in changchun .4.he did his homework yesterday.5.i bought presents for me friend 6.we got back to nanjing by train .回答对了给分,20,不骗人
答案
除了最后两个,其他都是对的.
最后两个的正确表达:
Did you buy presents for my friend?
Did you get back to nanjing by train?
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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