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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
E. provided with high-energy feed, and milked regularly, Holstein cows will produce
这题选E， 不晓得为什么要用将来式呢？
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发表于 2009-11-1 15:03:00
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