formal organization...[繼續(xù)閱讀]

    最低勞動年齡...[繼續(xù)閱讀]

    新生嬰兒溶血病...[繼續(xù)閱讀]

    人口過度膨脹...[繼續(xù)閱讀]

    過剩人口...[繼續(xù)閱讀]

    law of segregation...[繼續(xù)閱讀]

    產(chǎn)假...[繼續(xù)閱讀]

    population index...[繼續(xù)閱讀]

    生命力...[繼續(xù)閱讀]

    calender year life table...[繼續(xù)閱讀]