????????????????????????

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

??????????????????6????????18???(??????????????????????? ????????? ?)18???,??,??,?(???????????“??????????”)??

6?18??????????????,??????(?????????????????)??????????????? ??????????????????

????????????????????,??20.8??,?,?????????????????????24?,??

?497?,?????,?????(32+93+240+93+32)????,??????????????,?????????????????????,?????????????????????????????????????????????????????????????????????????

6?????????18?????????????,?,??(?)?????????????????? ???

?????621???????????????????????????????????622?,??,?????????43.2??????,??5.5?????(???????)×2.5???(???????)?????,????????????4.0?????,?11??,???84?????????????????????????

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

6????????18???,???????????(??????????????????)?????? ????????????????????

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

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