When did you check the contents of C02 cylinders（）. ["by counting","by calculating","by weighing","by filling"]
电脑储蓄日间营业，营业前准备时先由（）名柜员进行网点签到。 ["1","2","3","不限"]
以下各组文件中哪一组中有两个党的文件。（） ["命令、决定、公告、通告","公告、通告、议案、命令","公告、通告、议案、指示","公告、通告、报告、请示"]
火发生的三个条件是（）。 ["可燃物","助燃物","空气","火源"]
以下哪一种文体属于公文。（） ["散文","通知","计划","总结"]
炭阳极的主要生产工序包括什么？
