When did this kind of animal (A . appear B . disappear) on Earth?

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1. (2019七下·龙岗期末) When did this kind of animal (A . appear B . disappear) on Earth?

When did this kind of animal appear on Earth?

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广东省深圳市龙岗区2018-2019学年七年级下学期英语期末考试试卷（含听力音频）