017期【02,03,05,06,09,10,11,12,13,14,15,16,17,18,19,20,21,22,25,27,28,29,30,31,32,33,35,36,37,38,39,41,43,44,45,47,49】开32中 Q trU_c2k  
018期【01,02,03,04,05,07,08,09,10,11,13,14,16,17,18,20,21,22,24,25,28,29,30,32,34,35,36,37,38,39,40,41,42,44,46,48,49】开39中 +8GxX
$  
019期【01,02,03,05,06,10,11,12,14,15,18,19,20,21,22,24,25,26,27,29,30,32,33,34,35,36,38,39,40,41,42,44,45,46,47,48,49】开46中 Gvr>n@n  
020期【02,03,04,05,06,07,08,09,10,11,12,13,14,15,16,18,20,21,22,23,26,27,29,32,33,35,36,37,38,39,40,41,42,43,44,45,47】开12中 }wEt=zOJ  
021期【01,03,04,05,06,07,08,09,11,13,14,15,17,21,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,41,42,43,44,45,49】开42中 o_[
I#PT  
022期【01,02,03,04,06,08,09,11,13,14,15,16,17,18,20,23,24,25,26,27,29,31,32,33,35,36,37,38,40,41,42,43,44,46,47,48,49】开   &._Mh