江苏省常州市2014
高考英语阅读理解联合训练(2)及答案阅读理解 the diversity of the original american indian settlers was not quite as great as that of the 18th, 19th and early 20th centuries when waves of european, asian and unwilling african immigrants arrived on american shores. however, the first americans did have more far-going origins that were ever suspected. for example, brace’s studies have revealed that the blackf