???????6???????
????????2???????????????19?????????????????????? (????????????????? ??)????(??????????????19??)??19??????????,????6????
6?????:????????????“?????”????????????“?????????”??????????????????????????????“??+????”?????????????????“?????????”????????“???????”??????
??,???????????????,????????????,??????????,?????
?,???,??,???,?,????????????????
?????????????????????,?????“??”?????????“??????”?“????????????”???????????,????????????????????????,?????????????,????“?????????”?????
?????“??+??????????”??????????????????????????????,????????????“?????????????????????+??+X”??????????,????“????????????????????”???????????????,??????????????????????????????
?????“????????”??????????????,??(????????????),??????????????????????“??????”?,??????????????????????????????????????“???”,???????????????????
?????????????????????,??????“????”?????????,?????,??????,?????,????????????“???”+“???”???
????????????????,?????????????????????????????????(?????)??????????,??????,???,??????,???????,?????,??????????????????,?????????????????,??????????,??????????(?????????) ??????????????:???????????
??