Hello everyone, my name is Li ran ran . It is really a great honor to have this chance to introduce myself. and I hope I can make a good performance today. I am 26years old, born inXuZhou and I am currently a gradute student at suzhou university,and major microwave optics of physics.In the past years, I spend most of my time on study. I have passed CET4 and The computer grade 2. Though it is a pity for me that there is a gap between four poits to pass CET6,I dont give up before leaving school.I have acquired basic knowledge of optics both in theory and in practice. Besides, I have attended several Social practice and activities on campus. I served as monior and minister. I aslo practiced in ruixin optics company,and as a experiment lecturer,and manage money matters in hengchang. I learn a lot of things from the positions and practices ,such as the ability of organizition ,design product,communinicatioI have lots of interest, such as prose works of zhuziqing, make a speech,and basketball.For me,my biggest advantage is good at cooperating with others .It need communicate well with your partner to let them understand your idea.thank you