正确答案: C
若大量有害物质进入空气中,仅靠大自然的自净能力,大气还能保持洁净
题目:下列关于空气的说法中,错误的是
解析:C
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学习资料的答案和解析:
[单选题]Why did they lower their heads in shame according to the passage?
They did not express themselves much better.
[单选题]28. —Is Jack in the library?—Maybe.l saw him _________'out with some books just now.
go
解析:28.B【解析】句意;——杰克在图书馆吗?——有可能,我刚才看到他拿着一些书出去了.由句中的 just now可知“我”看到的动作已经发生过,所以应用see sb do sth结构。故选B。
[单选题]下列句子中加点词语的意义,不同于其他三句的一句是
大王诚能命将出师