#774262
What material should be made artificial grounding?
Варианты ответа:
  • black or galvanized steel or copper
  • copper and aluminium
  • of steel, copper and aluminum
  • galvanized steel and aluminum
Тематика: Основы безопасности жизнедеятельности Основы безопасности жизнедеятельности (ОБЖ) Основы электробезопасности
Курсы в категории: Безопасность и правопорядок
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