????2????????????
???1????????26? (? ????????????)1?????????????????26???,?2?,???????????????????2????
?????,2????,??0.1~0.5?,????????????????????:?????????????????????????????????21.0~23.4?,?????19.0~21.9?,????????????????????
????,??????????????(1?????????????????28?????????~2?????????4??),?,???,????????2?????????3?????~4??,????????????????????????????1?30??~2????????1?????,?????????????????1???????31???~2?????1???,??????????????????????????????????2?1??
?????????,????,????????????????????????????,?,???,?????????????,????????????????????????,???????????????,?????????????,????????????????????(??) ??:???????????????