user: Question: Which T.C. has a Win of 1, and a Race of 21?
Columns: ['Year', 'Team name', 'Drivers', 'Races', 'Wins', 'Poles', 'FLaps', 'Points', 'D.C.', 'T.C.']
Types: ['real', 'text', 'text', 'real', 'real', 'real', 'real', 'real', 'text', 'text']
Sample row: [2005.0, 'Campos Racing', 'Juan Cruz Álvarez', 23.0, 0.0, 0.0, 0.0, 4.5, '18th', '12th']
SQL:

assistant: SELECT "T.C." FROM "Table" WHERE "Wins" = 1.0 AND "Races" = 21.0;