Единая государственная система предупреждения и ликвидации чрезвычайных ситуаций (РСЧС)
#ОБЖ #10класс #РСЧС #урок
6 months ago 00:00:00 1
6 months ago 00:00:41 1
6 months ago 01:49:41 1
6 months ago 00:00:45 1
6 months ago 00:00:20 1
6 months ago 00:03:42 1
6 months ago 00:00:20 1
6 months ago 00:05:55 1
6 months ago 01:00:28 1
6 months ago 00:11:22 1
6 months ago 02:01:07 1
6 months ago 00:01:38 1
6 months ago 00:06:39 1
6 months ago 00:56:58 1
6 months ago 00:01:00 1
6 months ago 00:00:54 1
6 months ago 00:12:54 1
6 months ago 00:08:27 1
6 months ago 00:00:12 1
6 months ago 00:07:02 1
6 months ago 00:12:45 1
6 months ago 00:13:33 1
6 months ago 00:16:29 1
6 months ago 00:04:24 1
