1.Would you mind closing the windou?It is cold( )
题目
1.Would you mind closing the windou?It is cold( )
A;sure B;not at all C;certainly D;Yes
2.She is very ( ) about the final exam.
A;worry B;worried C;worrying D;to worry
另加解释哟,赶快行动
答案
b b
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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