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

2??????

3?????100???

4???????

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

??11????27???? ?????,??,???????,??????????????????????????4~8?????,??????????10~20???????????????0???????

??,??????????????,???????????????????????????????????????,????????(30~49.4??)??????????????????5?????????11???????????,?????10~20?????,????????????????????????????????????30~48??????????

???????????????,????????????????,???????,????????????????????,??????,????,????????,????????????

??,??????????24??????,?????????????????????????????????????????????????????????????????????????????4~5?????????6~8?;?????????????????????????????????????7~8?????9~10??,?????????????????????????????7~8???????????????9????????????????

??????????,?????,??????,??,??,??,????

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