（08上海）_____________well prepared you are ,you still need a luck in mountain climbing .
题目
（08上海）_____________well prepared you are ,you still need a luck in mountain climbing .
A .However B.Whatever C.No matter D.Although
答案
A.However well prepared you are=No matter how well you prepared.用D选项的话要改成although you are well prepared.一楼没把握就不要瞎掰,误人子弟.
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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