【多选题】【消耗次数：1】
生物多样性的内容主要包括（）。
①
A.遗传多样性
②
B.物种多样性
③
C.生态系统多样性
④
D.物种形态多样性
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【判断题】
生态系统是生物与环境构成的统一的整体，生态系统的多样性包括生物种类的多样性和生活环境的多样性，因此，生态系统的多样性受到影响时，会影响生物种类的多样性和基因的多样性基因的多样性
①
正确
②
错误
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impression
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reaction
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comment
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Do you mind telling me where you’re from?
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Certainly. I’m from London
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Sure. I was born in London
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Not really, you can do it
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when she
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had done
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which
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No. And so did I
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came across
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came up
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came to
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leave
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leaving
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【单选题】
Sorry to interrupt, but can you give me another copy of the handout?
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No, of course not
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Certainly
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I’m sorry to hear that
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By no means, but it’s impossible