019期：阴阳肖≤≤02,05,07,08,12,13,14,15,16,18,21,22,25,26,29,31,35,37,39,41,43,46,47,48≥≥开：46对
020期：阴阳肖≤≤02,03,05,06,07,08,09,11,12,13,18,19,20,21,22,24,27,29,30,32,34,37,43,47≥≥开：12对
021期：阴阳肖≤≤01,02,04,06,08,10,11,13,14,16,17,18,20,22,24,25,28,30,32,37,42,43,46,49≥≥开：88