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

2??????????????

3???????????

4???????????

5???????100

?2??????????????5?? ?????“????”5???????????,??3????????????4???4??7.3???,??9??????

?????,?????“????????????”?

??????????????????????,?????(??S)???,?????,?????,?????5????????

??,??,???????????????????????????????????????????????????????

????????“??”??,??,1????????????21??2???3????????????????142??,??25???2????2?,?65?46.3%,???68.6%?

?,???????,???????????????????,???(????????????) ???????:????