??????(6??19????????????????)?,???

???3.46??????????,????,

????????????????????????????????????????????????????????????????7?(?)2.13??,??,????????;

?????????????????????????????4???(??????)0.69??,????,??,?????????????????????????????,??;

??????2??0.64????????????,??,????????????????

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

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

????:1???????????:?????V

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

3?????

4????????????

5??????v???

??????(6??19????????????????)?,???

???3.46??????????,????,

????????????????????????????????????????????????????????????????7?(?)2.13??,??,????????;

?????????????????????????????4???(??????)0.69??,????,??,?????????????????????????????,??;

??????2??0.64????????????,??,????????????????

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