it was ______ he was injured that he failed in the competition. a because b as c since d for
题目
it was ______ he was injured that he failed in the competition. a because b as c since d for
选哪个啊?能告诉原因吗,我只知道这是个强调句
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
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