????:1??????????????:????

2???????

3??????v

4??????????

5??????24????

????11???????????????28????????? (???? ??????????????)????“???”????28??????????????????????????????????????????????“?”????????,????

????????????????????????????“?”?????? ???? ???????

??,????“?????”,?????????????????????????????????????????????,????????????????,?,????????,????,?????

“????????????”??,????????????????????????????????

??????????????,??????????????????????????????????????????????????????????????????????,????“?????”????,????“????+??????????????”?,????,????“????”???????“??????”???

?????????“???????????????????????”??“UGS”??“???????”????,??????????????????????“????”UGS???????

??????,????,“????”??????????????????,?????(??????????????????????????)

????:?????????????