Question: Which team has the highest winning rate in year 2000? State the team ID and list down the birth country of it's players.
SQL: SELECT DISTINCT T3.tmID, T1.birthCountry FROM Master AS T1 INNER JOIN Scoring AS T2 ON T1.playerID = T2.playerID INNER JOIN ( SELECT year, tmID FROM Teams WHERE year = 2000 ORDER BY W / (W + L) DESC LIMIT 1 ) AS T3 ON T2.tmID = T3.tmID AND T2.year = T3.year