What is the name of the airport with the most number of routes that start in China?
SELECT T1.name FROM airports AS T1 JOIN routes AS T2 ON T1.apid  =  T2.src_apid WHERE T1.country  =  'China' GROUP BY T1.name ORDER BY count(*) DESC LIMIT 1
SELECT T1.name FROM airports AS T1 JOIN routes AS T2 ON T1.apid  =  T2.src_apid WHERE T1.country  =  'China' GROUP BY T1.name ORDER BY count(*) DESC LIMIT 1
[{'name': 'Beijing Capital International Airport'}]