???????2V2??????????????9??????
???????2V2?????????
?????4??13??????14????4??16??????14?????????
?????飺
1??2V2???????????????
2??????????????????????????????????????????????????????????????!
3???????????????????
4?????????????????β?????????50?????
????????
3???2000??
5???4000??
7??????????
9???20000??
PS??????????????????????????????????????????????????????????