It first appeared in 1967, the "Berne Convention" Stockholm text, expressed as a result of the three conditions, so it is called three-step test.
它最早出现在1967年的《伯尔尼公约》斯德哥尔摩文本中，因表述为三个条件，故被称为三步检验法。
It first appeared in 1967, the "Berne Convention" Stockholm text, expressed as a result of the three conditions, so it is called three-step test.
它最早出现在1967年的《伯尔尼公约》斯德哥尔摩文本中，因表述为三个条件，故被称为三步检验法。
应用推荐