3^（2/3)=三次根号9
2 =三次根号8
2/3 = log(3,3^（2/3）)=log(3,三次根号9)
log(3,2)=log(3,三次根号8)
2/3=log(3,三次根号9)＞log(3,三次根号8)=log(3,2）
因此2/3 ＞log(3,2）