最新提问
我的动态
登录后查看动态
题目内容双击单词支持查询和收藏哦～
题目材料：
In California's Mojave Desert, archaeologists found two fluted projectile points, one on the surface. one buried, both similar to classic Clovis stone points from the American Plains. They obtained a radiocarbon date of 8,470 years from material associated with the buried point, a date far more recent than the known time range for Clovis points. There are three ways of accounting for this date. First, it is possible that fluted points were in use in this region around 8,470 years ago. Second, this point may somehow have been deposited at the California site long after its creation. Third, the 8,470-year date may be wrong; a second date from the same context providing an age of 4,360 years was rejected by archaeologists as incorrect.
· 相关考点
事实信息题
以上解析由 考满分老师提供。
