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

2?????????

3????????

4?????????

5????????

?????????????2???????????????????4? (??)?,???????????????????,????????“???????????”???(??????????,????????)??????????????????????

1?23?????,?????????????,????????? ?? ????

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

??,“90?”?????????????????“?,??????,???????80????”?,????,???,“?????????????,???????,?????????”?

“00??”???????????????,???“?”??????,?????19.9???????

1??23?,?? ???? ?????????

“?29.9??????????????????????????????????????19.9??????15????????????????……???”??????????????,?????????????????,????50??????

?????????,??????????????????????????????????13????????????????????:“??????,?,?????????????,????????????????????,???,??”

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

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

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