【1 Question per Day, 10 Questions】July 10, 2018

2018-07-10View Original

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Various openings and pits near the access routes at the construction site may not need to be provided (　). 　　 A. Guardrails 　　 B. Safety signs 　　 C. Red lights for night-time warning 　　 D. Monitor cameras. D. For management purposes, if you need to view content from a few days ago, please go to the summary post below. https://bbs.hcbbs.com/home.php?m ... w=me&from=space

Reply #22018-07-10

the anser is D

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【1 Question per Day, 10 Questions】July 10, 2018

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