第30题: [填空题]The reason why people in the past believed that the ordinary Mayan people lived in the countryside was that their knowledge was based on______. 参考答案:uncovering large Mayan structures/buildings 答案解析:解题依据在文章Possible Errors部这分。该段写到“由于过去考古学家只注意挖掘大型的玛雅建筑,因而缺乏对普通民房的了解,因此错误地认为普通居民住在乡村”。