?母语
...Mother tongues: approximately ? nfant mortality rate ? per ? (source: Statistical Yearbook of Cameroon); Maternal mortality rate ? per ? live births , with rates as high as ? in the north as a whole (source: United Nations Children's Fund (UNICEF)); Fertility rate ? per ? in ? verage births per childbearing woman 至 ? 岁年龄组的人失业率尤甚; 母语:约 ? 种; 婴儿死亡率:千分之 ? (资料来源:《喀麦隆统计年鉴》); 产妇死亡率:每 ? 次活产死亡 ? 人,整个北部地区高达 ? 人(资...