7.利用标志重捕法调查某丘陵地区4km2区域中刺猬的种群密度第一次捕获并标记50只刺猬第二次捕获40只刺猬其中有标记的5只.正确的说法是 Template




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tomski7.利用标志重捕法调查某丘陵地区4km2区域中刺猬的种群密度第一次捕获并标记50只刺猬第二次捕获40只刺猬其中有标记的5只.正确的说法是 coloring