The scientists resorted to the following data sources in the research -考呗网题库移动版
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单选题The scientists resorted to the following data sources in the research EXCEPT

A． radiation of the ancient lake wate
B． radiation detected in the san
C． the fluctuation of ocean level
D． appearance of the stone tool

参考答案A
解析:【A】
【定位】根据题干和选项可定位到第3、4段。
【解析】D项与第3段末句中石制工具的appearance相吻合，选项B、C分别在第4段第2句和第3句中找到依据。本题为反选题，要求选出与文章不相符的一项，故选项A正确。
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