单选题：闪点事判断液体火灾危险性大小以及对可燃性液体进行分类的主要依据，根据闪点判断，生产．加工．储存液体苯的场所火灾危险性类别

题目内容：
闪点事判断液体火灾危险性大小以及对可燃性液体进行分类的主要依据，根据闪点判断，生产．加工．储存液体苯的场所火灾危险性类别为（　　） A．甲类场所
B．乙类场所
C．丙类场所
D．丁类场所

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