this is an orange in English that is her ruler this jacket is yellow my name is Gina
题目
this is an orange in English that is her ruler this jacket is yellow my name is Gina
一般疑问句否定句怎么改
答案
Is this an orange in English?This isn't an orange in English.
Is that her ruler?That isn't her ruler.
Is this jacket yellow?This jacket isn't yellow.
Is your name Gina?My name is not Gina.
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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