题目内容

Population experts tell us that by the year 2025, the population in cities in developing nations will increase to five times its present size.()

查看答案

搜索结果不匹配？点我反馈

更多问题

Children all undergo babbling, holophrastic, two-word, and the telegraphic speech stages of language development.()

They may be happy because their work provides a lot of pleasure.()

Most environmental problems are caused by people.()

The lost bell is found in the parents' bedroom.()