1.select q.device_id,q.question_id,q.result from question_practice_detail q INNER JOIN (select * from user_profile where university = '浙江大学') u on q.device_id = u.device_id where u.university = '浙江大学'; 2.select q.device_id,q.question_id,q.result from question_practice_detail q,(select * from user_pr...