Question: 法国是何时为美国独立战争提供帮助的
Answer: 1778-02-06; 06-02-1778; 02/06/1778; 02-06-1778; 1778 02 06; 06 02 1778; 06 2月 1778; 1778-02-06; 06/02/1778; 1778 february, 06; 1778 2月 06; 02 06 1778