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

????:??????:????vx

?8??????5?? ??????????????,??,?????????????10???????????????,????,???

?10???????(8??5-14??),?????????????,??????40~80??,????????????????????????????????????????????????100~150????,????????200??????????;?3~7??????????,????????????1?????????

????:??

???????????:

5-6???????,?????????????????????????????????????,????????????????,?????????

7-11??????????,??????????????????????????????????????,??????????,???

12-14??,????????,??????????????????

??????

??11-14???(8??15-18?????????????),??????????????????????????????????????????????????30~60????,???????????????80~110??

???

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

?????????10?,?????????????????,????????????100~150????,?200???,?????

????,7-11??????,???????????????????,???????????????????????????,????????

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

??????10?????????????,????????????????????????????????????4~8?????????35~39?????,???????????????40~43?,11????????,???????

???????

??????8???????,????2-3?????,??10??

??????????????:???????