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  3. The first paragraph mainly tells us that The significance of open space and wild places lies in that

The first paragraph mainly tells us that The significance of open space and wild places lies in that

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问题 The first paragraph mainly tells us that
The significance of open space and wild places lies in that
选项 A、they can relax our minds.
B、they provide dwellings for us.
C、they keep the ecosystem balanced.
D、they act as animal reserves.
答案C
解析 本题问空地和荒野的重要性表现在哪个方面。从最后一段第一句"…We all depend on open space and wild place...for vital services such as crop pollination，water purification and climate stabilization"，可归纳出最重要的作用是"保持生态平衡"。它们可以使我们心旷神怡：最后一段"…not just for peace of mind…"提到这了一点，但这并不是最重要的。它们为我们提供住所；它们起到动物保护区的作用：均不是最重要的。
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考研英语一

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