1. A mobile phone manufacturer is due to design mistakes, it is possible to cause battery life than the original design of the original design. The solution is free to replace the battery or purchase 50 yuan to purchase the manufacturer's new mobile phone. Please write a letter to all purchased users to tell the solution.
2. When a senior leader visited a museum, a small king of Ming Dynasty as a commemoration of the Ming Dynasty, according to the state, and anyone may not change the museum collection into private. How does the museum curator need to write a letter to this leader and take the city brick back.
3, Miss Salesperson, due to the business mistake, selling 20,000 yuan in laptop to Li Mr. Li, Miss Wang, how to write to Mr. Li trying to return money?
Tang Jun, President of Microsoft Chinese Company, said: "It's unfortunately, I have had these three questions in many occasions, but so far, there is no one, but I have answered a question, so he is my assistant.
