284期：【03,05,06,07,19,24,32,40,44,46】开（27）准√
285期：【10,15,18,20,26,39,40,47,48,49】开（21）准√
286期：【06,11,13,14,17,25,36,37,40,42】开（45）准√
287期：【01,02,13,15,21,25,29,30,34,35】开（40）准√
288期：【06,07,08,12,20,24,29,43,44,49】开（26）准√
289期：【02,04,15,30,34,36,37,41,44,47】开（04）错×
290期：【06,13,14,17,21,28,34,35,39,40】开（11）准√
291期：【02,09,19,25,31,32,37,38,43,47】开（？）