在水资源的升�利用方面下列措施合理的是 A.大量抽取地下水扩大灌溉面积 B .大面积排干沼泽地既可开垦耕地又能获得水资源 C Template




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tomski在水资源的升�利用方面下列措施合理的是 a.大量抽取地下水扩大灌溉面积 b coloring