题目:
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.
选项:
A、 is often a greater difference in scenting ability between two members of a single breed as there is
B、 is often more difference in scenting ability between two members of a single breed as to find one
C、 is often a greater difference in scenting ability between two members of a single breed than
D、 are often greater differences in scenting ability between two members of a single breed as there are
E、 are often greater differences in scenting ability between two members of a single breed than there is
答案:
C