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If the condor population has tripled since two

2022-08-06 11:56:59 问答库 阅读 179 次

问题详情

If the condor population has tripled since two decades ago, about how many are there now? A.90. B.60. C.33. D.300.

参考答案

正确答案:A
参见第一段。如果20年前不足30只的话,这个数的三倍应该是900

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