SELECT recopa_1994 FROM table_name_54 WHERE supercopa_1994 = "1st round" AND team = "argentinos juniors"
Recopa 1994 mana yang memiliki supercopa 1994 dari putaran pertama, dan tim junior Argentinos?
CREATE TABLE table_name_54 (recopa_1994 VARCHAR, supercopa_1994 VARCHAR, team VARCHAR)