050期:01,02,05,07,08,11,12,13,16,17,19,21,22,23,24,27,28,29,33,34,35,38,39,40,43,45,46,49,                 开17中
051期:01,02,05,06,07,08,11,12,13,16,17,18,19,22,23,24,27,28,29,30,,32,33,34,35,38,40,43,45,46,49,      开45中
052期:01,02,03,04,07,08,09,10,12,13,14,19,20,23,24,25,26,29,30,31,34,36,37,40,41,42,45,46,47,48,