Engineering classes at the university are tough, and struggling students sometimes go to extremes in order to pass. Grading exams one semester, I got to this question: “What is the relationship between kinetic and potential energy?” One student, obviously stumped, decided to get clever and wrote, “As far as I know, they're just friends, but there could be something else going on there.”
大學的工程課程難度很大,成績差的學生為了要得個合格有時要走極端。有一個學期我在批考試卷的時候,批到一道題“動能和勢能之間有什么關系?”一個顯然發(fā)懵的學生答道:“就我所知,它們只是朋友。不過,或許它們之間還有點什么事兒?!?