美国历史简介英文版,简介一下历史上的Affirmative Action?要英文版!
问题描述：
美国历史简介英文版,简介一下历史上的Affirmative Action?要英文版!
答
The continent's first inhabitants walked into North America across what is now the Bering Strait from Asia.For the next 20,000 years these pioneering settlers were essentially left alone to develop di...