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- 2021-5-6
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1, address the problem: Native Hawaiian oral histories hold a different opinion about the span of building Maui. Since limitations of dating, archaeologists can not confirm.
2,archaeologists can confirm by useing a different radiometric technique and confirm that sociopolitical structure shift happened in span within 100 years.
1. B, main idea
2. C
3, A , If A do not happen, thorium-230 will not be able to date. |
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