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

2???????

3???????

4???????

5???????

????????????1??????????????????5??????????? ?????????????1????5???????????,??“?????”??????,????????,??????????????????,??????

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

???????,???????????????,??????,??,??????????,????????,???????????????????,??,???????,??????????????????????,??????,????????????????,???????,??????,???????????,??1-2?????,??,????????????,?????????????????,???????????????????????,????????????????????????????,??,????

????,?????????????????,?????????????????????,?????,???????????????? ??????????????????,????????????????????????????????????????,????????????????????????50g???????,??????????????????????????,??????????10-20g,?????5-10g,???????????,??????????????1-2??? ????????????????:????????