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

2????????????

3????????

4??????

5???????

??????2??19????? (?????????? ?????????????????)?????(?????????????????????19????)????????????19?????,????????????6????

6??????????????:????“??”??“????”??????????????????“?+??????????”??????????????????????????“????”???????????“????”?????

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

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

????????????,???“???”??????????“?????????????????????”?“??????????????”?????,?????????????????,????????????????????????????????????,?????????????“?????????????????????????????????”???????

??“?????????+????????????”??,???“????+??+X”???????,??????????????“????????????????”?????,????????????????

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

?????,??“?????????????????????????????”??????????,???,???????????,??????????,?????????????????????????“????????????”+“?”??????????

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