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

2??????

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

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

5????????

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

?????????,?????,??????!???,????

???????? ?????????:???????,?????????,???,?????????????????,????

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

????????,??“??????”??????????

?,??????????????????,??????????????????1000??????????????????????,??

?? ?????????????????????:???????,??????3.8????????,????????????5?????????????????????

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

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