题目内容：
根据下面资料，回答题 They may have lived some 1,700 years ago, but the ancient Maya had an incredible knowledge of celestial bodies, which they believed influenced everything. Now a 15-year-old boy has studied astronomical charts devised by these ancient Mexican
A.found in a jungle B.built along rivers 1,700 years ago C.built far away from rivers 300 years ago D.built along rivers between 300 and 700 AD
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答案解析：