select: 01, 02, 03, 04, 05, 06, 07, 08, 09, 10 ;
select: 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 ;
select: 21, 22, 23 ;
On 1937-07-07, how Japanese and Chinese troop start fight?