Excuse me,are there any bookshops?Yes,().A.it is any B.they are some C.there are som
题目
Excuse me,are there any bookshops?Yes,().A.it is any B.they are some C.there are som
D.there are any并说出为什么
答案
B 回答是肯定句,要用some any 用于否定句
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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