wangjinquan ,a teacher from Qichun,has supported many poor students to college.---he himself lives
题目
wangjinquan ,a teacher from Qichun,has supported many poor students to college.---he himself lives
plain life.A but B though 我应该选哪个?答案好像是选B.但是我感觉but 也能说通啊.他们两个到底有什么不同的,在这里为什么要选though
答案
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
最新试题
热门考点