变压器正常运行时,重瓦斯保护应投跳闸位置,有载调压分接开关的瓦斯保护应投跳闸位置,未经总工批准不得将其退出运行。
参考答案:对
—Excuse me, could you help me carry the heavy box?
—_____ [ ]
A. Yes, I could
B. With pleasure
C. Don't mention it
D. No, I eouldn't
特高压电网技术发展是保障清洁能源大规模发展和电网安全经济运行的关键。