How many brothes does your uncle in his family?A.has B.have C.having D.to have
题目
How many brothes does your uncle in his family?A.has B.have C.having D.to have
How many brothes does your uncle in his family?
A.has B.have C.having D.to have
答案
B
does 后的动词要用原形
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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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