◎ 题干
Studies have shown that 45 percent of reptile species and 24 percent of butterflies in these
countries are in danger of ________.
[     ]
A.dying down  
B.dying away
C.dying back  
D.dying out
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Studies have shown that 45 percent of reptile species and 24 percent of butterflies in these countries are in danger of ________.[ ]A.dying downB.dying awayC.dy…”主要考查了你对  【动词短语】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。