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

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

3??????????

4???????

5???????????

????????????(??):???(10??12???)????????????,????,???????????????????????????????????????????????5??????

????????????????23??,????30%?????????,???????????????????10?,??????“????”?

???,?????????????????7???,????????1200???,??????????27????42????????????70???80???????,????????????40???2?????10???7???42???????????????

?,????????????????????????????????,????70%????,????13??? ??:??????????????