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    【题目】1930年，鄂豫皖革命根据地英山县水稻单位面积产量增加二三成，有的甚至达到五成，出现“赤色区米价一元一斗，白色区一元只能买四五升”的情况。这主要是因为根据地

    A．土地革命后农民生产的积极性提高

    B．红军英勇奋战保卫农民生产

    C．政府推行“国民经济建设运动”调动了积极性

    D．人民打破国民党的经济封锁

    【答案】A

    【解析】1930年，正处于土地革命时期，中国共产党在革命根据地开展打土豪、分田地的土地革命，使无地、少地的农民分到了土地，极大地调动和激发了广大农民的生产积极性，使农村革命根据地的粮食大丰收，故选A项。红军英勇奋战主要是保卫根据地的安全，故排除B项。国民政府开展的“国民经济建设运动”，故C项错误。D项所述与史实不符，且与材料现象构不成因果关系，故排除。

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