12?????????2?,?,????,???????????????????????,??????12????????????????1????????,??,?????????????????????????????????12??2????,?????????????????,?10????,?,??,?????

????????,??????12??????????????5????????????????8???,???????,?????????????????(??)

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

“?????v”_????

?? ??????? ???????10?

????:1??????v:??????

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

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

4???????????

5?????

12?????????2?,?,????,???????????????????????,??????12????????????????1????????,??,?????????????????????????????????12??2????,?????????????????,?10????,?,??,?????

????????,??????12??????????????5????????????????8???,???????,?????????????????(??)

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