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因建筑市场混乱，无证上岗以及愚昧无知，致使在深井施工中缺氧和中毒死亡２人，是一起重大的责任事故，应该从中吸取深刻的教训。
Due to the construction market chaos, undocumented posts and ignorance, resulting in the death of hypoxia and poisoning in the deep well of 2 people, is a major accident with responsibility, we should learn from the profound lessons.