单选题：How do all food chains break? All food chains are broken if

题目分类：公共英语三级
题目类型：单选题
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题目内容：

How do all food chains break? All food chains are broken if______ A．one kind of animal is eaten up
B．one kind of plant is destroyed
C．one kind of animal eats another
D．one of the links is destroyed

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分类：公共英语三级题型：单选题

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