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Competitionin the mid-nineteenth century by large western farms gradually caused farmersin Pennsylvania to turn to livestock raising, but before that it waspredominantly grain-producing.
- Competition in the mid-nineteenth century by large western farms gradually caused farmers in Pennsylvania to turn to livestock raising, but before that it was predominantly grain-producing.[C1]
- Once predominantly a grain-producing state, competition in the mid-nineteenth century from large western farms gradually was causing Pennsylvania’s farmers to turn to livestock raising.[C2]
- Pennsylvania’s farmers were gradually caused to turn to livestock raising by competition from large western farms in the mid-nineteenth century, but before that it was predominantly a grain-producing state.[C3]
- It was once predominantly grain-producing, but competition in the mid-nineteenth century by large western farms was gradually causing Pennsylvania’s farmers to turn to livestock raising.[C4]
- Pennsylvania was once a predominantly grain-producing state, but competition in the mid-nineteenth century from large western farms gradually caused the state’s farmers to turn to livestock raising.[C5]
这个题给的答案是E但是我觉得，E和A的句子中心完全不一样了，怎么还能成为正确答案呢？百思不得其解啊！！求大神解答！！！
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发表于 2012-2-26 15:55:52
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