??????????1??7? (? ?)1?7???,?6.8???????????????,???,??????

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

??????????????????,??10????????????1???????????,10?20??????????1???????????,20??50?????4??????????????????4??????????????1?????????????7???10?43???????????,???????????????????????????????

???????????????????????????????????????????????????,??????????,?????(??????????????) ???????????????:??????????? ??“????”?????

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

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

2???????

3?????

4??????

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

??????????1??7? (? ?)1?7???,?6.8???????????????,???,??????

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

??????????????????,??10????????????1???????????,10?20??????????1???????????,20??50?????4??????????????????4??????????????1?????????????7???10?43???????????,???????????????????????????????

???????????????????????????????????????????????????,??????????,?????(??????????????) ???????????????:???????????