多项选择题

在气体放电灯的频闪效应对视觉作业有影响的场所，应采用下列哪些措施？（）

A.灯具设置电容补偿
B.采用高频电子镇流器
C.相邻灯具分接在不同相序
D.单相供电，使场所的灯具接在相同相序上

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听力原文：M: Mary, would you go to the Children's Center with us this Sunday afternoon?W: Well, I'd like to, but Mum asked me to see her nephew Tom at No. 1 People's Hospital.M: It doesn't matter. What's wrong with Tom? Does he have a bad cold or have a headache?W: I was told that he hurt himself in the left left during the football gamE.M: I'm sorry to hear that. How long has he been in the hospital?W: Three days. He was sent to the hospital as soon as his leg was hurt.Where is the boy going?A.The Children's PalacE.B.The Children's Center.C.The hospital.

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多项选择题

有关10kV变压器一次侧开关的装设，下列说法哪些是正确的？（）

A.10kV系统以放射式供电时，宜装设隔离开关或负荷开关
B.10kV系统以放射式供电时，当变压器在变电所时，可不装开关
C.10kV系统以树干式供电时，应装设带保护的开关或跌落式熔断器
D.10kV系统以树干式供电时，必须装设断路器

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