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

????????????????????(?????????????)????????????1510mg?15mg13???B12?10.51.5mg??1.54.5mg????????11mg11

?
?

?~~
????????B12???B12???????B12?100g?1???????
???????????????????????

???????????????????????DNA???????????????DNA??????????????????????????
???????????????????Wright???????????????????????????????????????J?????????????????
?????????????????B12?????N????????????????????????????
?????????????????????????????????n?????????

?????????????????????C???????????????????

?????????????????????????????????????1????1.52? ??

?????????????????????????????C???????k?????????? ??B12????????????????????B12 ??50??1030?B12??? ?????????
???:

??????????????????????????120g/L??110g/L??4.51012/L??4.01012/L??HCT<0.42?<0.37???
????????????????????????????????????????????...