one of the primary distinctions between our intelligence with that of other primates may lay not so much in any specific skill but in our ability to extend knowledge gained in one context to new and different ones.

a. between our intelligence with that of other primates may lay not so much in any specific skill but

b. between our intelligence with that of other primates may lie not so much in any specific skills but instead

c. between our intelligence and that of other primates may lie not so much in any specific skill as

d. our intelligence has from that of other primates may lie not in any specific skill as

e. of our intelligence to that of other primates may lay not in any specific skill but

answer C

我理解between ..and...

但是,看后面 may lay not in....but......不是还有个not...but...的在里面么?可是C完全没有而是用了not....as....这样句意还对吗? not ...but...不是更好吗?    请nn们指教

not...but.. 是不是 而是

这里应该是程度的比较，所以用so much    as

既然你明白了between...and 的用法，那么答案是C无疑。

这里为什么不能用but ,not....but的用法没有错误，可是你要知道but和and一样，连接的是两个并列关系，而but之后也要有一个独立的具有完整

主谓结构的从句，可是but后面是句子吗？只是in our....的介词短语。

而as可以连接两个相类似的短语，而且，not so much as是个常用的用法