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Purification Safety Question 0501

2019-05-01View Original

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According to the explanatory notes of the \"Standards for Environment and Hygiene at Construction Sites,\" the hardening of the construction site area refers to the use of methods such as laying concrete, crushed rock, or gravel to prevent construction vehicles from causing () pollution to the environment while moving around the site.    A. Splashing water B. Noise C. Dust D. Exhaust fumes C

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