they指代性错误是相对错误,不是绝对错误,不要过于纠结,这里问题是D是被动,没有动作发出者这个对象,而且with as much depth不是习惯用法,普遍是in depth
1人
Jasontraveling2018-07-13 13:06:08
觉得they有一点ambiguous啊,是指代animals还是patterns?
0人
crisli2019-11-06 11:24:03
it's unclear .... or ... 是平行结构特征;
平行的组合 是 chimpanzees 对 other animals ; whether 对 whether;
in their ability to learn behaviors 对 similar patterns ;
if they were studied in as much depth 是前提条件,非平行组合之一;