SELECT "nation" FROM table_204_703 WHERE "gold" > 0 AND "silver" = 0 AND "bronze" = 0
what country only received gold medals in the 1994 winter olympics biathlon ?
CREATE TABLE table_204_703 (
    id number,
    "rank" number,
    "nation" text,
    "gold" number,
    "silver" number,
    "bronze" number,
    "total" number
)