题目

When I was 13 my only purpose was to become the star on our football team. That meant  41 Miller King, who was the best   42  at our school. Football season started in September and all summer long I worked out. I carried my football everywhere for      43   . Just before September, Miller was struck by a car and lost his right arm. I went to see him after he came back from   44  . He looked very   45  , but he didn’t cry. That season, I  46  all of Miller’s records while he   47  the home games from the bench. We went 10-1 and I was named most valuable playe用电流表和电压表测小灯泡电功率的原理：________．