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

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

3???????????

4????????????

5?????

?7??17???? ?????????????????,??10?????????????????(7??????????????????17-26????????????),???????????????????????????????????,?60~120??????????,????150~200??,?????????300??????;?????????3~7?????,?????1~2???

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

17-20??????,???????????????????????????????,????,????????????????,????,??

21-23?,???????????????????????????????????,??????????,??????

24?????,?????????????????

21-24??????,???????????????????????????

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

?11-14?????????????????(7?27-30????),??????????????????????????????????40~80??,??????100~150??????

?

1?????????????????

20?????????,?????21?,????????,????????,????,??,???

2??

??10?????????????,????????????????????????????????????????????????,??35~39?,???????????????????40????

3????????

?????10????????????,????1~2??????????,?????????1???????

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