he often does sports in april.(in april部分提问)__ _he often__sports?
题目
he often does sports in april.(in april部分提问)__ _he often__sports?
they have a school day at their school.(一般疑问句)
__ ___ ___ a school day at their school?
it is sunday today.(sunday部分提问)
__ __ ___it today?
答案
do they have
what day is it today
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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