用疑问句,否定句,修改下列句子
题目
用疑问句,否定句,修改下列句子
I watch TV every day.改成疑问句
I usually piay football on Friday afternoom.改成否定句和疑问句
答案
Do you watch TV every day?
I do not usually piay football on Friday afternoom.
Do you usually piay football on Friday afternoom?
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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