Bufo marinus toads, fierce predators that will eat frogs, lizards, and even small birds, are native to South America but were introduced into Florida during the 1930's in an attempt to control pests in the state's vast sugarcane fields.
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Aare native to South America but were introduced into Florida during the 1930's in an attempt to control
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Bare native in South America but were introduced into Florida during the 1930's as attempts to control
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Care natives of South America but were introduced into Florida during the 1930's in an attempt at controlling
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Dhad been native to South America but were introduced to Florida during the 1930's as an attempt at controlling
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Ehad been natives of South America but were introduced to Florida during the 1930's as attempts at controlling
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正确答案: A