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3.图中三条曲线分别代表了动物物种多样性程度、动物数量易变程度及冬眠动物比例在不同类型生态系统中的变化趋势。代表动物物种多样性程度和数量易变程度的曲线依次是(A)①② (B)②③(C)①③
問題詳情
3.图中三条曲线分别代表了动物物种多样性程度、动物数量易变程度及冬眠动物比例在不同类型生态系统中的变化趋势。代表动物物种多样性程度和数量易变程度的曲线依次是
(A)①②
(B)②③
(C)①③
(D)②①
參考答案
答案:C
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
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