机车、自轮运转特种设备的鸣笛鸣示方式中,警报信号的鸣示方式为( )。A.一长一短声 B.一长两短声 C.两长一短声 D.一长三短声

作者: tihaiku 人气: - 评论: 0
问题 机车、自轮运转特种设备的鸣笛鸣示方式中,警报信号的鸣示方式为( )。
选项 A.一长一短声 B.一长两短声 C.两长一短声 D.一长三短声
答案 D
解析

相关内容:机车,自轮,设备,鸣笛,鸣示,方式,报信,两长,一短声,短声

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