????:1????????:??????????50

2???????????

3?????sn

4??????????

5????????

???????2???3???????????? ?:??????????????? ????:“???+”????????

????? ?????

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

????,?????????“??????????????”“???”?????????????????????????????????10???????

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

??,???????????????168?????????,????(??)

????,??????????????,????????168?????????????,???????????????????

????????????,?????????????168?,??? (??)

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

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

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

“????????????,??????‘?????????’?????????,??????????”????????????????????,?????????????????????????,????

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

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

??,??????????,“??????????+????”?????,?????;“??+??”??????????,???????,?????????“??,??????,?????????????,???”(????????????????)

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