????:1?????????????:????VX

2?????

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

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

5????????

?????????????7???21?????????????? (???????? ?????????? ????????)??????4??????“??????”(?????????)????????????21???,???21???

7?21??9??,??????????????????????????????????????,??? ?? ?????????????????

??????????,“?????????????”??10????????15??,???,21?11??????(???)???125????????????

???????????,“???????????”?????21???,???;?,“??”?????????????????10??15??????????????????,?,???????????????????????????????21????????????????????????????????22????????,????

????????“???”????,??7?????????????21?????9??,????,??????????????,?????????????????,???????7?????????????????????11????70??????,????????????????????

?????????,21?23????,?????????????????,?8????????9??,?10?11?,23????,???????????????

?,??“?????”?????????????,21?22??,???????,??????????????6??8?????9?????10??

??????(???)

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