9 класс. Первоначальные сведения. Основные положения теории органических соединений.
Ссылка на презентацию:
5 months ago 00:03:36 1
5 months ago 00:07:09 1
5 months ago 00:01:59 1
5 months ago 00:04:53 1
5 months ago 00:07:09 1
5 months ago 00:00:09 6
5 months ago 00:35:53 1
5 months ago 00:00:24 1
5 months ago 00:04:36 25
5 months ago 00:03:12 27
5 months ago 00:03:47 25
5 months ago 00:19:31 1
5 months ago 00:11:30 2
5 months ago 00:02:30 5
5 months ago 00:02:45 1
5 months ago 00:02:29 1
5 months ago 00:05:16 5
5 months ago 00:00:19 162
5 months ago 00:40:18 1
5 months ago 00:03:29 9
5 months ago 00:03:15 39
5 months ago 00:02:18 22
5 months ago 00:01:39 42
5 months ago 00:05:07 1
