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

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

3??????????

4?????????

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

???6??30?????? (??)??????30????????9????????24????????????????????????????????,??????????????????????????(120~160??????),???????(????30~50?????,?60???????????)???(8???????)???

29??20??30????7???,????????????????????????????????????????????????????????790??50??,??18.9%;41?????????????????????100??,??????1.0%;??150.3??

???,30??;??,???????????,???(??) ?????:???