?12??3????? (???????? ?????)????12???3???????????

???:???????,????????????????????,??????100%????????,????????????????????????

?????????????????????:??,?????????????????????????????,?????????????????,?????????,???,???(?)

??????????:??????? “???????????”_????

?? ???? ???????????????

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

2???????

3?????sn

4?????????

5??????????

?12??3????? (???????? ?????)????12???3???????????

???:???????,????????????????????,??????100%????????,????????????????????????

?????????????????????:??,?????????????????????????????,?????????????????,?????????,???,???(?)

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