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

2?????????

3??????????

4?????????

5???95?

?6???????18?(?? ????)????????????????????18?????,??,6?18?8???????????,??????????????????????????????????????????25?39??0.01????2.67???6?18?9???????????????????????,??????????????

??,???????????????24??????????,???0.5?3??,????,?????????????1??1.5?,????????????3?;????????1?5?,??2?3?;??????????????????1???2??????,???

????6???????????18?9????????????????????????,??????????????????????????,????(??????) ??:??