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

2?????

3??????

4??????

5????????

?????????2???????18?????????????? (????????? ?)?????«??»(«????2»)18??????

«????2»????????????«?????????»????????????,???,???????????,?????????????????????????????????????,?????????????,???????“??????”,??“??”??????????????????????????????18???,???(???????)?????123??????????,????????????21??????

2???????18???????????????????????,??????????????????«???????????»??? ???? ???? ???????????????? ?????

???????,???,«??2»???,????????????????????????,???????????,???,????“???????”?

???,«??»??????????????,????????«??2»?,????????,???????

«?????????????????2»???????????,???????“????”“????”??,???????,??????????????????“?????????????????????????”??,???????“????????????????‘????????????????’”??????

??,???“??”(?????,??“??”)???,??,??,???“??«??2»???????”

?????,«??»??????,??????????,??????????????????????,?????????????“1+1>2”?????

«??????????2»????????????????????????,??????2?22???(?????)

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