?????6??15??? (????? ?????????????????????)?????????????14??,??????????????6??????????????????12??????,?1000????,?????,??????20??????????????

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

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

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

?? ???????????????1000??

????:1???????:?????98?

2???????

3??????????

4??????

5?????

?????6??15??? (????? ?????????????????????)?????????????14??,??????????????6??????????????????12??????,?1000????,?????,??????20??????????????

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

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

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