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

2?????????

3???????

4???????????

5?????????

???????????????2???????????????10???? ??,??????,?????,????????????,?????;????????????????,????,?????????????

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

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

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??????????????????????6~8????,??????10?????

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

?????,11-12????,?4~6????????????,???4~6?,????8?,?10?????;???????????????????????????????????,11????????,????,??????????????,12????,????????????

??????????

2??????????10??20??????11??????????20??,????????????????????????????????????????????????????????,????????,??????,??(10~11?????????????)????????????????????????????????????????????????????????????????????????????????,????,?????????????????????????????????????4~6????;????????5~7?????

????1 ??????(2????10??20?-11?20?) ????:?

2????????11????20?12?20???????,?????????????????????????????,??????????????????,???????????????????????,??????????(10~11?????????????)??????????????????????????????????????,??,????????????(50~60???????????)????????????????????????????????4~6???

??2 ?(2????????????????11??????20????-12?20????)  ??????:????????

2??????????????12??20?13?????20???????,??????????????????????????????????????????????????????????????????????????????????????????????????????????????,????,??????????????????????????4~6?????????

???????????3 ???(2?????12?20???????-13?????20?????)  ????:??????????? ?????:??????????????