there is evidence that eating a big breakfast,particularly______containing whole grains and fruits,c
题目
there is evidence that eating a big breakfast,particularly______containing whole grains and fruits,can improve your concentration and mood.
a.one b.that c.it d.another
为什么用one ,不懂.
答案
这里不是指特定的早餐,就是泛指某一顿早餐.
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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