题目

       Like many boys in Rio Piedras, Puerto Rico, Juan Rodriguez Jr. loved to play baseball. He dreamed about playing professional ball like his hero, Chi Chi Flores.  36  Gradually his friends nicknamed (给……起绰号) him “Chi Chi”.         37  At the age of seven, he drove oxen (牛) in the fields, earning a dollar a day. His father, Juan Sr., gave him another nickname “El Millonario” (the Millionaire) because his young son always looked for better ways to make money. Chi Chi soon discovered that being a caddy (球童) at the local golf course paid more函数的反函数是（  ）网（）（）（）（）