[求助]GWD17-17

   艘了一下，没找到，请教一下

17. Because fish look through water, their eyes are very different (B. from a mammanl's)

C from that of a mammanl

不是完全一样么，请问c怎么错了，多页。

 是不是单复数的问题？their eyes->that? 而a mammal's则可单可复

哦，呵呵，恍然大悟，原来a mammal's也可以表示复数的阿

up

their eyes are very different from a mammal’s (eyes)

划线部分精确对称，如果是that of a mammal就不精确对称了。