匹配题(冒号前面是题干，后面是匹配段落)

　　46.Many middle-income: In sylva C

　　47.In Florida: All 50 steates J

　　48.The subsidized: Among the first E

　　49.As the former managers: In New York L

　　50.The researchers: The number of B

　　51.In a district: Many large M

　　52.The year of : Congress passed I

　　53.people involved: The concern H

　　54.In some places: Many large M

　　55.The enrollment: although G