177. (31589-!-item-!-188;#058&006483) (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 milk 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 答案:E E. provided with high-energy feed, and milked regularly, Holstein cows will produce 这个题的主要考点都了解了,只是对正确选项还有一点不明:为什么and milked regularly前面还要加一个逗号呢?显然provided with high-energy feed和milked regularly所作的成分是一样的,直接用and连接不是很平行吗?
请NN指教!!!
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