Directions：　　You are a professor in a department. One of your graduates asks you to write a letter of recommendation to a company which she wants to work for. Your letter should include:　　（1）an brief introduction of yourself；　　（2）the student’s performance and main strengths；　　（3）the main accomplishments at university.　　You should write about l00 words ,Do not sign your own name at the end of the letter. Use “Li Ming” instead. You don’t need to write the address.