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【多选题】
依据《企业职工伤亡事故分类标准》（GB6441-86）第4条，下列对伤害程度分类描述正确的是（）。A.
伤害程度分为3类、轻伤、重伤、死亡。
B.
轻伤是指损失工作日低于105日的失能伤害。
C.
重伤指相当于表定损失工作日等于和超过105日的失能伤害。
D.
伤害程度分为2类、轻伤、重伤。
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