单选题：According to the speaker, why do pesticides pose a threat to

题目分类：公共英语五级
题目类型：单选题
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题目内容：

According to the speaker, why do pesticides pose a threat to amphibians? A．Pesticides can cause an amphibian's skin to dry out.
B．Pesticides kill the insects that amphibians depend on for food.
C．Dissolved pesticides can easily enter amphibian's bodies.
D．Amphibians may eat plants that have been treated with pesticides.

参考答案：

答案解析：

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分类：公共英语五级题型：单选题

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分类：公共英语五级题型：单选题