1) Traditional medium

　　2) Easy to carry

　　3) Conveniently read

　　4) index of academic environment

　　1) Not durable

　　2) Low rate of updating

　　3) Can't be shared by any people

　　22 University: library V.S. Physical training facilities

　　Library:

　　1) Major goal to impart knowledge to students

　　2) Index of academic environment

　　3) Attract more excellent professors

　　Physical Training:

　　1) Help to improve one's health which is basis of study

　　2) Students learn to be cooperative

　　3) Provide relaxation

　　4) May produce good athletes