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【多选题】
关于洁净厂房，下列说法正确的是（）。A.
洁净区与非洁净区、洁净区与室外相通的安全疏散门疏散方向开启，并闭门器
B.
洁净室的顶棚、壁板及夹芯材料应为不燃烧体，可以采用有机复合材料
C.
顶棚和壁板的耐火极限不应低于0．4h，疏散走道顶棚的耐火极限不应低于1．0h
D.
洁净厂房外墙上的吊门、电控自动门以及装有栅栏的窗，均不应作为火灾发生时提供消防人员进入厂房的入口
E.
洁净厂房内各场所应配置灭火器，配置灭火器设计应符合现行国家标准《建筑灭火器配置设计规范》(GB 50140)的有关规定
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A.
正确
B.
错误
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A.
watch
B.
being watched
C.
have watched
D.
being watching
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