試題詳解

35. The text describes a possible sequence of human descent. At the end of the sequence are Native Americans. What people are at the beginning of the sequence?
(A) people who migrated from Asia to North America about 15,000 years ago 6
(B) tribes living in Central and South America today
(C) people who were living in Greenland about 4,000 years ago
(D) people who were living in Spain about 7,000 years ago