• 2022-06-06
    To effectively control the respirable coal and silica dust exposure of mine workers, it is not necessary to identify the sources of dust generation and quantify the amount of dust liberated by these sources.
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      It is clear from the passage that the cotton industry __ A: is not taking any action B: is imposing safety standards C: is looking for sources of dust D: does not believe that the dust constitutes a hazard

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      Continuous Miner dust control Methods include: dilute, suppress, redirect, or capture dust A: 正确 B: 错误

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      An enormous amount of dust in the atmosphere could lead to ______.

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      Michael’s vacuum cleaner squealed loudly, shook violently, and _____. A: filled the air with dust B: dust filled the air C: dust was filled in the air D: dust was filled with the air

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      She is ______ the dressing table. A: dusted B: dust C: dusting D: to dust