【单选题】【消耗次数：1】
办公室火灾的原因是（ ）
①
电火灾
②
空调短路
③
人为纵火
④
静电引起
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【多选题】
生产过程中产生的静电可能引起火灾爆炸、电击伤害、妨碍生产。其中，火灾爆炸是最大的危害，关于静电危害的说法，正确的有（）。
①
A.静电能量虽然不大，但其电压很高而容易发生放电
②
B.带静电的人体接近接地导体时可能发生电击
③
C.生产过程中产生的静电，可能降低产品质量
④
D.人体接近接地导体，会发生大花放电，导致爆炸和火灾
⑤
E.生产过程中积累的静电发生电击可使人致命
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