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

2?????????

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

4???????

5????????

????????????????????????2???????8?????? ??????:????,????????,????????????????????????????????

??????????????????,?????????,???????????,????????????????????;??,??;??????????,????????;??????????,?????

?????????????,?????,????????,????,???????????,?????????????«????????????»«?????»«??»?,?????????????????????,????????,????????????????;?????????????????;??????,???

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