摘要: insert into city values (1,1,'北京')
insert into city values (2,2,'济南')
insert into city values (3,2,'青岛')
insert into city values (4,2,'烟台')
insert into city values (5,3,'大连')
insert into city values (6,3,'沈阳')
insert into city values (7,4,'南京')
insert into city values (8,5,'石家庄')
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