 |
| |||
| age structure | |||
| distribution by age | |||
| age distribution | |||
| |||
| aging distribution | |||
|
repartition par ages : 4 短语, 2 学科 |
| 卫生保健 | 1 |
| 统计数据 | 3 |
|
| |||
| age structure | |||
| distribution by age | |||
| age distribution | |||
| |||
| aging distribution | |||
|
repartition par ages : 4 短语, 2 学科 |
| 卫生保健 | 1 |
| 统计数据 | 3 |