???????,??????????????,??????????????????
??????????????4-10???????????
????С?????????????????????????4-10????????????????????????????????????????????????????ο???
????????5???????賿?????????????70%?????????????????г???????????У?????????????
???????????????????
??????????????4??-5???250~300????
??????????????5??-6???500~650??
??????????????6??-7???1200~1350????
??????????????7??-8???2250~2500??
??????????????8??-9???5800~6500??
??????????????9??-10???10000~12000
PS?????????????????????100-300?????????!
?????????????????????4-10????????????????????????????????龡?????????????????