020期：阴阳肖≤≤02,04,10,11,12,16,18,19,20,22,24,25,27,30,31,32,34,38,40,43,44,47,48,49≥≥开：10对
021期：阴阳肖≤≤02,03,04,07,08,11,19,20,22,23,27,31,32,33,35,36,37,39,40,44,46,47,48,49≥≥开：07对
022期：阴阳肖≤≤01,03,05,08,09,11,13,14,15,18,19,21,23,25,26,27,28,29,30,35,42,44,48,49≥≥开：18对
023期：阴阳肖≤≤02,07,08,12,13,14,17,20,21,22,24,25,29,30,31,34,35,36,37,38,41,42,45,49≥≥开：01错
024期：阴阳肖≤≤01,03,04,08,10,11,12,15,16,17,19,20,22,24,27,28,31,32,33,39,43,44,45,46≥≥开：32对
025期：阴阳肖≤≤01,04,05,06,12,13,15,16,17,18,19,22,24,27,30,31,33,34,36,40,43,44,45,49≥≥开：47错
026期：阴阳肖≤≤01,03,04,06,11,15,16,18,20,22,23,25,26,33,36,38,39,40,42,43,44,46,48,49≥≥开：46对
027期：阴阳肖≤≤01,03,05,07,09,10,11,13,15,16,18,22,24,25,26,27,28,31,32,35,39,45,48,49≥≥开：88