?6??19? ??,6??19??,??????3.46????,???,?,??????????????????????????????????????????????7????(??????????)2.13???,??;????????????????4?(?)0.69???,??;?????????????2?????????0.64????????,????

????:??? “?????vx”_????

?? ?????????????????????3.46?????

????:1??????vx:??????

2??????

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

4??????95?98

5????????????

?6??19? ??,6??19??,??????3.46????,???,?,??????????????????????????????????????????????7????(??????????)2.13???,??;????????????????4?(?)0.69???,??;?????????????2?????????0.64????????,????

????:???