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

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

3?????

4????????

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

?12?27??????????????????? ?????27????,27??,????????,?????????????????????????????4~6???27???????????29?????,??,??,27-28?(?????20~25?,????????30?),????5~10cm???25cm?????,29????,???

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

27??,??????,????????????????????????????????????4~6????????????????????????????,12?????27????????08???????????????????28??08???????,?????????????????????????????????????????5~6???????7~8?,?????,??????????????????9????;?????????????????????????????????????????????????7~8???????????9~10??????12?27????06???????,28??30?,?????????????????????????4~6??,?????7~8?,????9??

????(12??27????????08????-28????????08????)

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27?29?,??,????,27-28??????(?20~25??,???30???????????),????5~10cm??25cm???????,29???????,???

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12??27??08???28???????????08???????????????,??????????????????????,?,?????????????????,??????(10~19??????????????????)?????????????????????????????????????????????????????????????????????????4~6???7~8??

??????(12???????27?????08?-28???????08??)

12????28??08??????29????????08??????,????????????????????????????,????,??(10~19??????????)?????????????????????????????????????4~6????????????????????7~8??????;???????????????????????????????7~8?????????????9~10???????

?(12??????28?????08??????????????-29???????????08??)

12??29??08???????30???????08????,???????????????,??????,?????????,?(10~15?)??????????????????????????????????????????????????????4~6????????7~8??;?????7~8??,??9~10??????????????

??(12?????29????????????08??-30??08?????) ????????:?????????