填空题Conservationists are trying to save primary forests because they have much higher levels of biodiversity.____

填空题
Conservationists are trying to save primary forests because they have much higher levels of biodiversity.____

参考解析

解析:
根据题干信息“primary forests”和“trying to save”可以定位到F段“Primary forests usually have much higher levels of biodiversity than secondary ones, which is part of the reason conservationists are trying to save old growth.”,故匹配段落为F段。

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