?? ?????????????????
????:1????????????:????????vx
2???????
3???50????????
4????????95?
5????????100????
??9???19????????? (????? ?????????)??????????(????)???19???????????????????????????????????????,???
??23?????????????????,????????????????????????“????????????”???????,???“???????????”????,???????????????????“?????????????????????”?????,???15????,??“??+?????+???????????”???????“???????????+???+?”?????
????,???????????????“?????????????????????????????????????????,???????????,?????”??“?????????????????????????????????????????”??,???????????????????????,??????????????
??????????,??(???????????????)????;????????????????????????;?????;????
???????(????)??????,??????????(???)???????????????????,?????????????????????????????????????????????????????????,??????,?,??????????
????????????,????,???????,???????????????,?????,?????????????????????????????????????????????,???????????????????????,??????????????????(?????????) ??????????????:???????