✔ 最佳答案
I'm assuming a laptop(?).
Yes, keep it turned off (the T and Y keys are shorting...that's why it's doing that)
Turned over with a dry cloth is really not getting that drink out of the laptop. Need to take it to a repair shop for a teardown and cleanup
No clue on how much it would be. Maybe around $100??
No, you won't lose your data. It's safe.