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美國(guó)留學(xué)的推薦信 I am writing this letter of remendation for ,my former student. I have known Mr. Caleb for more than 6 years since his freshman year at University of Minnesota. At that time, he took the course Mathematical Analysis, which I taught mainly for junior students majoring in Mathematics. To my surprise, I found he was among the few students in his class who could keep up with the pace of my lectures. Moreover, he often posed thoughtprovoking questions during the course. Thus it was natural that I liked discussing with this young man and became familiar with him. The more I k