老师好，想问比较对象的问题，您能说一下怎么看比较对象么，因为涉及省略，我总是找不准，请问是直接看than后面往前找么 比如这道题的D，我不能理解成total fat of wild animals is less than （total fat of ）livestock 。。。么？一样的部分被省略了（total fat of ） 同样还有一道类似的， The eyes of the elephant seal adapt to darkness more quickly than any other animal yet tested, thus allowing it to hunt efficiently under the gloomy conditions at its feeding depths of between 300 and 700 meters. AThe eyes of the elephant seal adapt to darkness more quickly than any other animal yet tested, thus allowing it 分析该选项 BThe eyes of the elephant seal adapt to darkness more quickly than any other animal yet tested, allowing them 分析该选项 CThe eyes of the elephant seal adapt to darkness more quickly than do those of any other animal yet tested, allowing it 分析该选项 DBecause they adapt to darkness more quickly than any other animal yet tested, the eyes of the elephant seal allow it 分析该选项 EBecause the eyes of the elephant seal adapt to darkness more quickly than do those of any other animal yet tested, it allows them 分析该选项 这个题中的A\B比较对象有问题么，不能理解成The eyes of the elephant seal adapt to darkness more quickly than （The eyes of ）any other animal 么？ 另外还有一个问题，时间长有点忘了，是it\that 都指上文提到的那个东西么，不是一类？这种指一类还是确定一个的代词麻烦您也说一下，因为E里面有这个问题，谢谢老师了