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

2??????????

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

4??????

5?????q

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

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

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

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