这是一封大学教书为自己前学生的留学推荐信,该学生是数学专业dearsir/madam:iamwritinhisletterofremendationformr.caleb,myformerstudent.ihaveknownmr.calebformorethan6yearssincehisfreshmanyearatuniversityofmiesota.atthattime,hetookthecoursemathematicalanalysis,whichitaughtmainlyforjuniorstudentsmajoringinmathematics.tomysurprise,ifoundhewasamonhefewstudentsinhisclasswhocouldkeepupwiththepaceofmylectures.moreover,heoftenposedthought...