请问下列句中“which”指代的是哪个?

题目

请问下列句中“which”指代的是哪个?
He arrived at Gzhis-ka-rtse with only two horses and one mare which were ever as many as 130 horses
and mares when he first entered Tibet.
这句话中文意思为：他进藏时有130匹马,抵达日喀则时仅剩下两匹公马和一头母马.

答案

知道英语牛人团为你解答.
这里的which后面跟的是复数动词were,说明which指代的必须是复数.
再看句子前后结构,比较的是“他”两个时间点的坐骑数量,因此前后的公马和母马必须对应.
所以,which = two horses and one mare