Find the busiest destination airport that runs most number of routes in China.
SELECT T1.name FROM airports AS T1 JOIN routes AS T2 ON T1.apid  =  T2.dst_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.dst_apid WHERE T1.country  =  'China' GROUP BY T1.name ORDER BY count(*) DESC LIMIT 1
[{'name': 'Beijing Capital International Airport'}]