苹果(AAPL.O)第一财季服务业务净销售额为300.1亿美元，低于市场预期的300.7亿美元。

Group 1 - The core point of the article is that Apple's first fiscal quarter service revenue was $30.01 billion, which fell short of market expectations of $30.07 billion [1] Group 2 - The reported service revenue represents a significant aspect of Apple's overall financial performance, indicating potential challenges in meeting market forecasts [1]