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r the Civil War? (A) New technological developments had little effect on farmers。 (B) The percentage of the total population working in agriculture declined?! ?C) Many farms destroyed in the war were rebuilt after the war?! ?D) Farmers achieved new prosperity because of better rural transportation?! ∥闹兄赋觯悍寝r(nóng)業(yè)人口的數(shù)量和比例都增加了。由此可知農(nóng)業(yè)人口的數(shù)量和比例下降,所以(B)為正確答案?! ∪?、解答這類題目需要注意的信息點: ?! 。骸 ”硎径嗌俚母痹~: many , some, much of, several , a few ,most …。 情態(tài)動詞:may, can , could…。 表示過去的:used to be , was, were