????:1?????:????12?????

2????600???????

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

4?????V

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

??????6??28???????????????????? (??????? ?????)??????(?????)???????????????28??????????,?????(???????)???????

6??28??,??????(???)???????????? ?? ?

?,??????????110????????????,?????????????????,??????,??????,??????????????????????????,?????????????

????“????”????????????????????????,???????????

??????,??“??????”??????????,?(??????)?????????100?,???70%?(?)

??????:????