The ozone layer plays as great a role in the stability of spaceship Earth as____

游客2025-03-28 3

问题 The ozone layer plays as great a role in the stability of spaceship Earth as______ the waters of its lakes, ponds, oceans, rivers, and streams.

选项 A、do
B、does
C、play
D、are

答案 A

解析本题考查的是助动词+主语构成的倒装结构，强调主语，省去主要动词，waters为复数，因此A项为正确答案。

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TheozonelayerplaysasgreataroleinthestabilityofspaceshipEarthas____