题目

   Novak Djokovic is a Serbian professional tennis player who is currently ranked world No. 1 in men’s singles tennis by the Association of Tennis Professionals(ATP). Novak Djokovic was born on May 22, 1987 in Belgrade,. Socialist Federal Republic of Yugoslavia. His two younger brothers , Marko and Djordie, are also tennis players with professional aspiration.    When Novak was 2 and a half, the family moved to Mount Kopaonik. His parents, Srdian and Dijana, opened a restaurant there. There were tennis courts right in front of their restaurant. His father saw love in his eyes when8、 下列能在内环境中发生的反应或存在的物质是（   ） ①葡萄糖氧化分解生成CO2和H2O   ②抗毒素与外毒素结合 ③ 乳酸转变成丙酮酸  ④神经递质  ⑤ATP合成酶 A ①②③            B ②③④          C ②④           D  ④