自20世纪80年代中期以来我国人均食品销费的增长速度逐步减慢，主要原因在于： - 查题网

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成人高等教育 / 农业概论

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自20世纪80年代中期以来我国人均食品销费的增长速度逐步减慢，主要原因在于：

A、
老龄人口增加
B、
劳动强度下降
C、
人口数量下降

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农业概论

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