--- People should spare no efforts to protect the environment.
--- ________. Air pollution does harm to our healthA.All rightB.Take it easyC.Go aheadD.Exactly
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D解析试题分析：考查交际用语：句意：--人们应该不遗余力的保护环境。--确实是，空气污染对我们的健康有害。A. All right好的，B. Take it easy放轻松，C. Go ahead请便，D. Exactly确实是，选D。
考点：考查交际用语