• 出生性别比 - 引用次数：12

  According to the censuses of our country in recent three decades, the sex ratio at birth increased gradually, and in some areas, was in serious imbalance.

  我国近年来人口普查资料表明，出生性别比有逐年升高趋势，某些地区已呈现明显失衡状态。

  参考来源 - 出生人口性别比失衡原因研究

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