连词成句;students ,having,park,the,a,are,in,picnic,the
题目
连词成句;students ,having,park,the,a,are,in,picnic,the
to,go,to the park,we,flykites,often,at weekends,together
of,by bike,we,to school,go,by underground,shall
答案
1 The students are having a picnic in the park .2 We often to to the park to fly kites together at weekends .3 Shall we go to school by bike or by underground ? ( of 应该是or )
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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