电钻直机头和电动骨钻机头可采用以下哪种消毒方法A.甲醛蒸气消毒,40%甲醛持续4

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问题 电钻直机头和电动骨钻机头可采用以下哪种消毒方法A.甲醛蒸气消毒,40%甲醛持续40minB.甲醛蒸气消毒,20%甲醛持续20minC.甲醛蒸气消毒,20%甲醛持续30minD.甲醛蒸气消毒,40%甲醛持续20minE.甲醛蒸气消毒,20%甲醛持续40min

选项 A.甲醛蒸气消毒,40%甲醛持续40min
B.甲醛蒸气消毒,20%甲醛持续20min
C.甲醛蒸气消毒,20%甲醛持续30min
D.甲醛蒸气消毒,40%甲醛持续20min
E.甲醛蒸气消毒,20%甲醛持续40min

答案 A

解析
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