????????? ???42????????????

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

??????????????6?8???? ????,?,???????????????????????????,?????????????8???????????????,????????????;8??????????10?,????????????????????????????????????????????;???????????

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8??????,????????????????????????,?????????????????,???????

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?????6???????8?13??????????????????,????????????????????????,????3~5??;?????????????????39~42??

?????????????6?????8??????????????,???????????????????35~36????,????,??????????37~39?,?40??????????6??????????????8?????6???????????

??(6??8?8????????????????-20??)

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8?10???????????????,????????????????,???????????????,???????????????????,????

11??12??????????????,?????,??,???????????????????????????

13????15?,????????,??????????????,?;???????????????????,????????????????

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6????????????????????8??????????????8????9??8????,???????????????????????????????????????????????,??,?????????????????????????????,????????(100~180???????)???????????????????????????4~5????

?(6???????????????????8??8?-9?8?)

6?????9?8??10?????8????????,?????????????????????????????????????????,????????????,????????????????????????(50~90???)??4~5?????

?????????(6??9????8??-10?????8??????)

6?10?????8?????11??????????????8??,?????????????????????????????,?,????????(50~90?????????)??????????????????4~5???????

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