“Birth ratio”的意思、由来-开放百科全书

词条	Birth ratio
释义	SeeSex ratio
随便看	Tropical cyclones of Arabian sea Tropical Cyclone Vince Tropical Cyclone Warning Centre Tropical Cyclone Warning Centres Tropical Cyclone Yasi Tropical deep fungal infections Tropical Depresion 04F (2009) Tropical Depression 01F (2007) Tropical Depression 02F (2007) Tropical Depression 03F (2007) Tropical Depression 04F (2007) Tropical Depression 04F (2008) Tropical Depression 04F (2009) Tropical Depression 05F (2007) Tropical Depression 08F (2008) Tropical Depression 09F (2008) Tropical Depression 10 (2005) Tropical Depression 10 (2007) Tropical Depression 10F (2004) Tropical Depression 10F (2007) Tropical Depression 1 (1992) Tropical Depression 11F (2008) Tropical Depression 12F (2007) Tropical Depression 12F (2008) Tropical Depression 13F (2008)

开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。