T-4-Q12For 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 milk each per year.
- providing them with high-energy feed, and milking them regularly, Holstein cows are producing
- providing them with high-energy feed, and milked regularly, the Holstein cow produces
- provided with high-energy feed, and milking them regularly, Holstein cows are producing
- provided with high-energy feed, and milked regularly, the Holstein cow produces
- provided with high-energy feed, and milked regularly, Holstein cows will produce
正确答案是E 我不太理解为什么D不对,这个和后面的each 有关系吗??望战友们指正
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