何为分裂变压器的分裂阻抗?
参考答案:
两个低压分裂绕组运行,低压绕组间有穿越功率,高压绕组开路,高低压绕组之间无穿越功率。此方式下两低压分裂绕组之间的阻抗称为分裂阻抗。
–Which hair band do you like best, madam?
–I can’t decide now. I really don’t know _________.
A.to choose which one
B.choose which one
C.which one to choose
D.which one I should choose it
痰热咳嗽主证为()
A.久咳,干咳少痰或痰中带血,午后潮热
B.久咳气逆,干咳少痰,咳引胸胁痛
C.久咳痰多,痰白易出,胸脘痞闷
D.咳嗽新起,咽干鼻燥,咳声嘶哑,痰少稠黏,难以咯出
E.咳嗽新起,咳声粗亢,痰稠色黄