题目

   The Olympic Games The ancient Olympic Games was in the year 776BC. They were held at Olympia in Greece every four years, for almost 12 centuries, until AD394. The contemporary Olympics were first held in 1896, in Athens. It was a Frenchman, Pierre de Coubertin, who brought the Olympics back to life. He dreamt that the Olympics would make it possible for 56. 各国人民和平相处. Now people all over the world are helping to realize this dream. Among them are many well-known athletes. 57. 中国运动员为奥运会做出了重要贡献。At the 1984 Los Angeles Olympics, the Peo命题方程表示焦点在轴上的椭圆，则使命题成立的充分不必要条件是A． B． C． D．