扫描二维码，直接登录
题库 / Prep2007E1-SC-112
Though certain breeds of dog are renowned for their sense of smell, there is often a greater difference in scenting ability between two members of a single breed as there is between members of different breeds.
is often a greater difference in scenting ability between two members of a single breed as there is
is often more difference in scenting ability between two members of a single breed as to find one
is often a greater difference in scenting ability between two members of a single breed than
are often greater differences in scenting ability between two members of a single breed as there are
are often greater differences in scenting ability between two members of a single breed than there is
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
Because there is only one category mentioned (sense of smell) I think the word "difference" is appropriate.
more……as 错；more than/higher than/greater than 对
登录 或 注册 后可以参加讨论