Aseachsemesterbegins,mycolleaguegreetshisstudentswearin...
问题详情：Aseachsemesterbegins,mycolleaguegreetshisstudentswearingajacketandtie.“Youmakeonlyonefirstimpression,”hesays.Sowhiletherestofthesemesterheteachesclassinhisusual,morecasualclothes,thefirstwee...