单选题：Which of the following about the scientists' study is NOT tr

题目分类：理工类
题目类型：单选题
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题目内容：

Which of the following about the scientists' study is NOT true? A．They compared zoo-born elephants with wild elephants.
B．They analyzed the records of 800 elephants kept in zoos.
C．The zoo-bom elephants they studied were kept in European zoos.
D．They kept detailed records of all the elephants in their care.

参考答案：

答案解析：

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