电网负荷1000兆瓦以下的省、自治区电网，减供负荷%40%以上为较大事故。
参考答案：对
省公司电科院建立省级设备状态评价指导中心，负责对（）及以上设备进行评价。
Think hard and you won't have the puzzle _____ you. [ ]
A. puzzling
B. puzzle
C. to puzzle
D. puzzled
