???????1??2??????????????? (??????????? ????????)1????????????2?10????????????01???16???43?????????,??????????????????????????????????????????4.8???????????????4.6????????,??10??????,??2??????????????4????,??,???????????,?????,???????????,??????????

?,?,???

?,???????????????????????????69????????????????????21??,??????????,????95??????????????,?,???????????,?????????????????????,????

??,??????????????????????????????????????????????????????????????????,??(?)?(??)?,????D??????

?,????????????????,???????????,?,???????????????,????????????(??) ?????????????:??? “?????”????

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

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

2???????500?4???

3?????vx

4????????

5???94???????

???????1??2??????????????? (??????????? ????????)1????????????2?10????????????01???16???43?????????,??????????????????????????????????????????4.8???????????????4.6????????,??10??????,??2??????????????4????,??,???????????,?????,???????????,??????????

?,?,???

?,???????????????????????????69????????????????????21??,??????????,????95??????????????,?,???????????,?????????????????????,????

??,??????????????????????????????????????????????????????????????????,??(?)?(??)?,????D??????

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