????

?????????????
??????????
????..??
????????..??...

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

???

SY?????????
1SY??SY????????????????M??????????,,,,,,,,,,..........,,,,,,,,,...........2???????????????????????????????SYSEX??????????3SY????????????^??????????4SY??SY???????????????????5SY??????????SY?????????SY??k????????6SY????????SY?SYI????????7SY?????????????????8SY??????????????????????9SY????...

???...????...???
? ? ??? V z??
???????? ?
1?? ??????????????????????NGU??y??????????????????????????????????????

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

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

????1%2%(<35)????????45%60%?????

??????????NGU?????????????????????????????????????????????

????????????????5/??
??
??(?????)???
?(??????)??
??????????????????????????????????
??????????????}????
??????????????(??]??]?p?)????????????5/??(1000) ???15/??(400)?
?????????????????????????
???
??????????
? ???

?
?????????????????????]??]?????80%??????????
  ???????  
  1???1020?
  2???????????50%???????????????????????????????(???10)????????????????(???10)
  3????????????(n)?????????????????????????
  4?????????????]??????1-3????????
  5?????(1%)???????????????????...