| timestamp,action_type,item_id,source,user_answer,platform | |
| 1562387404564,enter,b3110,diagnosis,,mobile | |
| 1562387445576,respond,q4578,diagnosis,c,mobile | |
| 1562387452519,submit,b3110,diagnosis,,mobile | |
| 1562387452618,enter,b2235,diagnosis,,mobile | |
| 1562387499328,respond,q3703,diagnosis,b,mobile | |
| 1562387504099,submit,b2235,diagnosis,,mobile | |
| 1562387504184,enter,b3447,diagnosis,,mobile | |
| 1562387526474,respond,q4915,diagnosis,a,mobile | |
| 1562387532076,submit,b3447,diagnosis,,mobile | |
| 1562387532173,enter,b7373,diagnosis,,mobile | |
| 1562387559169,respond,q10022,diagnosis,d,mobile | |
| 1562387564440,submit,b7373,diagnosis,,mobile | |
| 1562387564530,enter,b2245,diagnosis,,mobile | |
| 1562387588479,respond,q3713,diagnosis,d,mobile | |
| 1562387593514,submit,b2245,diagnosis,,mobile | |
| 1562387593605,enter,b2476,diagnosis,,mobile | |
| 1562387635177,respond,q3944,diagnosis,b,mobile | |
| 1562387641024,submit,b2476,diagnosis,,mobile | |
| 1562387641111,enter,b2598,diagnosis,,mobile | |
| 1562387682693,respond,q4066,diagnosis,a,mobile | |
| 1562387688317,submit,b2598,diagnosis,,mobile | |
| 1562577966144,enter,l812,tutor,,mobile | |
| 1562577975655,quit,l812,tutor,,mobile | |
| 1562578235180,enter,l438,tutor,,mobile | |
| 1562578345886,quit,l438,tutor,,mobile | |
| 1562578346336,enter,b5243,tutor,,mobile | |
| 1562578770042,respond,q7073,tutor,d,mobile | |
| 1562578777065,submit,b5243,tutor,,mobile | |
| 1562578777146,enter,e5243,tutor,,mobile | |
| 1562578805894,quit,e5243,tutor,,mobile | |
| 1562578936293,enter,b5369,tutor,,mobile | |
| 1562579190495,respond,q7524,tutor,b,mobile | |
| 1562579196382,submit,b5369,tutor,,mobile | |
| 1562579196483,enter,e5369,tutor,,mobile | |
| 1562579267816,quit,e5369,tutor,,mobile | |
| 1562583154277,enter,b5567,adaptive_offer,,mobile | |
| 1562583170565,respond,q8096,adaptive_offer,d,mobile | |
| 1562583178865,submit,b5567,adaptive_offer,,mobile | |
| 1562583178962,enter,e5567,adaptive_offer,,mobile | |
| 1562583186494,quit,e5567,adaptive_offer,,mobile | |