三所学校联合举行运动会。每所学校选出两名升旗手。每天升旗时,每所学校只要一名升旗手护旗。第一天护旗的有A、B、C;第二天护旗的有B、D、E;第三天护旗的有A、E、F。请问哪两位同学是同一所学校的?注意,每天三名护旗手不同校,那么另外三名未护旗的也 Three schools jointly held the Games. Two flagsmen are selected for each school. Every day when the flag-raising, as long as a flag raising hand flag. The first day of the flag there are A, B, C; the second day of the flag has B, D, E; the third day of the flag has A, E, F. Which two students are the same school? Note that three bearers of different schools each day, then the other three did not protect the flag also