#774470
A number of supports for air lines with the grounding device is made by selective opening of a ground for a survey of these grounding devices?
Варианты ответа:
  • 1 % supports
  • 2% of the supports
  • 3 % poles
  • 5 % supports
Тематика: Основы безопасности жизнедеятельности Основы безопасности жизнедеятельности (ОБЖ) Основы электробезопасности
Курсы в категории: Безопасность и правопорядок
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