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

2?????2??

3?????????

4????????

5??????????

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

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

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

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