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可吸入性粉塵的粒徑為(? )?

作者:煤礦安全網 2022-06-02 08:46 來源:煤礦安全網 吸入性 粉塵 粒徑
題目信息:

  可吸入性粉塵的粒徑為( )

  A、1-5毫米B、1-5微米C、1-5納米D、1-5厘米

答案

煤礦安全網(http://www.nanibalconysafetynets.com)

備案號:蘇ICP備12034812號-2

公安備案號:32031102000832

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