整理：下周重要事件与数据预告——美国4月非农、中国4月制造业PMI；巴菲特股东大会+美股四巨头财报

Group 1 - Key Point 1: Important economic data and events are scheduled for the upcoming week, including the US April non-farm payrolls and China's April manufacturing PMI [1][2] - Key Point 2: Major companies are set to release earnings reports, including Meta, Microsoft, Apple, and Amazon [1][2][3] - Key Point 3: The Berkshire Hathaway annual shareholder meeting will take place from May 2 to 3 [3] Group 2 - Key Point 1: Various economic indicators will be released, such as the US ADP employment numbers and the Eurozone GDP growth rate [1][2] - Key Point 2: Central banks, including the Bank of Japan and the European Central Bank, will announce monetary policy decisions and economic outlooks [2][3] - Key Point 3: Several countries will observe public holidays, affecting stock market operations [2][3]