Nowadays more and more people are moving to the countruside because the air there is much better...
题目
Nowadays more and more people are moving to the countruside because the air there is much better...
Nowadays more and more people are moving to the countruside because the air there is much better than ____ in the city.
A:one B:it C:this D:that 为什么不选B啊?
答案
选B说明the air in the countryside和the air in the city是指同一件事情,这是矛盾的,that就是指the airin the city和前面的主语是同一类但不是同一个
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