【答案解析】[范文]
Dear Sir/Madam,
   Today I saw the notice that the library is going to recruit an assistant. I feel glad to receive the news and I really hope I can take this position.
   I am interested in the library work because I really like reading, as library is a place I have dreamed of in which numerous books are stored. I have the capacity to deal with the technical work in the library for I have learned the specific skill for several years. Additionally, I am fully confident of my responsibility as I have worked as a group leader in my research project for some time.
   I really wish you can offer me this position and I will do the best to fulfill all the duties.