设置二氧化碳灭火系统的防护区内,应设疏散通道和安全出口,使人员能在( )s内撤离防护区。A:15 B:20 C:30 D:60

作者: tihaiku 人气: - 评论: 0
问题 设置二氧化碳灭火系统的防护区内,应设疏散通道和安全出口,使人员能在( )s内撤离防护区。
选项 A:15 B:20 C:30 D:60
答案 C
解析

相关内容:二氧化碳,灭火,系统,防护,区内,应设,通道,出口,人员,防护区

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