T-4-Q12 对此题D选项单数不行，仍存在疑问，请NN解答

besoru

（164）    T-4-Q12
For the farmer who takes care to keep them cool, providing them with high-energy feed, and milking them regularly, Holstein cows are producing an average of 2,275 gallons of mild each per year.
A.    providing them with high-energy feed, and milking them regularly, Holstein cows are producing
B.    providing them with high-energy feed, and milked regularly, the Holstein cow produces
C.    provided with high-energy feed, and milking them regularly, Holstein cows are producing
D.    provided with high-energy feed, and milked regularly, the Holstein cow produces
E.    provided with high-energy feed, and milked regularly, Holstein cows will produce
我看了很多讨论了的帖子都说因为them对应复数，所以只能用复数，但them只出现在A句中，D选项中并未出现them，如果拿them单复数的问题来解释D选项，我觉得不太合适，而且我感觉时态上D更合理，求NN解答下

448258130

未划线部分有them，d选项cow是单数，导致them无所指

besoru

448258130 发表于 2013-11-9 10:48
未划线部分有them，d选项cow是单数，导致them无所指

哦，看到了，太谢谢了