【答案解析】Dear Sir/Madam,
I am Li Ming. I am writing to you to apply for further study in your university.
Born in Beijing in 1991, I graduated from Tsinghua University majoring in Computer Science in 2013. Transcript listing courses and grades will be sent on request. I have been working in the Computer Science Department of Tsinghua University since my graduation and have therefore attained knowledge and experience in this field. So, I am confident and eager to further my studies in this field in your university. And I am sure I will not disappoint you.
I hope to hear from you at your earliest convenience.