求NN解释一下difference是可数还是不可数的？

Lizzy233

我又见过有可数的情况，又见过有不可数的情况，究竟是可数还是不可数？

旺财财

Lizzy233 发表于 2014-9-18 10:16
像这一道题就是不可数的，但是之前又见过可数的情况。。我已经彻底凌乱了
Though certain breeds of dog ar ...

根据题目来，如果它后面加了s,或者指向它的动词用了复数，那它就是可数的。
这类问题不是G考察重点，一般句子都会有提示。

Lizzy233

像这一道题就是不可数的，但是之前又见过可数的情况。。我已经彻底凌乱了
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.
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