Many seientists are becoming increasingly convinced that the universe contains...
题目
Many seientists are becoming increasingly convinced that the universe contains...
Many seientists are becoming increasingly convinced that the universe contains millions inhabited planets ____
a.like ours b.similar ours c.like our own
为什么选C?A,B 错在哪?
答案
B.没有这种用法
如果用A的话,就要求前面叙述的事物是用(his,their,your...)planet来表述.
C.like our own (planet)可以和前面的叙述呼应.
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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