018期：(腐蚀)《《04,10,13,14,15,19,21,28,31,32,33,35,36,37,45,49》》开：10中啦
019期：(腐蚀)《《02,05,07,09,10,15,16,18,22,26,29,30,32,38,40,47》》开：04x
020期：(腐蚀)《《02,05,11,13,14,17,23,25,27,29,30,32,34,36,40,46》》开：33x
021期：(腐蚀)《《05,07,12,14,17,18,19,23,27,29,33,34,39,43,44,46》》开：==？