题目

阅读下面材料,根据其内容和所给段落开头语续写两段,使之构成一篇完整的短文。I was surprised when I received a short message from my father wishing me a happy birthday.I had expected to hear from my mother, my grandmother and my other relatives but never from my father. Lying in bed, memories of my father flooded back.When I was a little boy, I regarded my father as a hero able to do anything. However, things slowly began to change. The more I learned, the more I doubted what he said. The gap between us grew and, at last, I didn’t even like communicating wit如图所示,L1和L2是输电线,用电压互感器和电流互感器测输电功率。若已知甲的两线圈匝数比为50∶1,乙的两线圈匝数比为1∶20,并且已知加在电压表读数为220V,电流表读数为5A,则输电线的输送功率为A.甲是电压互感器,乙是电流互感器B.乙是电压互感器,甲是电流互感器C.1.1×104W     D.1.1×106W
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