020期：【必中特围】:(01,02,03,05,07,10,11,13,18,19,21,27,28,29,30,32,34,35,37,38,41,43,45,47) ≮特开：10准
021期：【必中特围】:(01,05,07,10,11,12,16,17,19,22,24,27,28,30,33,35,36,42,43,44,46,47,48,49) ≮特开：07准
022期：【必中特围】:(02,04,06,08,12,13,15,17,18,20,26,27,28,29,30,32,33,34,37,40,41,42,43,45) ≮特开：？？√