#774470

#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?

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

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Тематика: Основы безопасности жизнедеятельности Основы безопасности жизнедеятельности (ОБЖ) Основы электробезопасности
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