?? ??????????????????
????:1????????????:?????????
2????????????
3????????
4????????????
5???????
???????11??????????????27? (?? ???????????????)11????????????????27??,????8??????????????27??????????,?????????????,8???,27????????“????”??????
???????8???????????????????????????????????????????,??????8??,??7.61??????,??????19???,????????????,?,???????????“??????????”,?????????????“????”????????
??????8???????,???LED??????????????????,????????????;????,???????;??????,?;?????????,????,??????????,??????????????……
??????????????????27???????????,?????????,????????,????????????24.86?????,?????23?????????????????“????????????????‘????????????????,????????’????????????”?????,????????????“??????”????????????????
???27????????????????????????,????,??,???????????;?????“??????????????”??????????????????????“???????????”??????????????,??,????????????,??????????????
???,?“???????”??????????,?????????????????????????,?“??????????”,?????????,??????????????????,?????????????,?????????,???????????????,???????,????????????????
?????????27????????????????????????,8???27????????“?????”“??????????????”,??????????????????,?????????????????????????,??????????????????????????????????????,?????,?,??,??????????????????????(????)
???:?????