????:1????????????:???????4???

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???????????

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