????????????? 9?????????

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

?6??18????? ????,??????????????????10??????????????????,?????????,6??18????????????????????14?????????????19????14??????,?????????????????????????????????????????????????????????????,????,?????????????(100~200??????????????)??(??????????????????????????20~50?,????70??),?????

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

??:

1????;

2???,?????;

3???,?????????,??;

4????????????,?????

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