APP Now, the population question already the worldwide basis question, we must pay attention. in 2000 the world population achieved 6,000,000,000, because the population question has been in the world the most major problem overpopulation brings many questions, caused the developing country population to account for the world population 4/5, but China adopted the birth control policy to have t （共 459 字） [閱讀本文] >>
