?????“????”?????????????

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

?????9?????16???? (?????? ?????????)“?????”“??????”“???????”……??,??????,???????????????,??????,“??”???????????????,???,??“??”????????????????

?“???????”? ?????? ?????????

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

??«????????»???????????????????????,????100???????????100???0.5????

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

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

«?????»??????,??????50??????,??????????25???????,???????,???????????,?????????,??????????“?????????”??????????????,??,???1/4???????1/8??,????,????????????????,????????????????????????,?????????,?????????????,??(??)

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