In our country, the sex ratio at birth has appeared a series of characters and a new situation of keeping increasing, which has already been a serious social problem needed to be solved imminently.

 
  • 我国自1980年代以来,出生性别比呈现出持续升高的态势和一系列特征,已成为迫切需要解决的严重的社会性问题。
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