［??／??］１７，１８? ??? ??? ???

?22? ??? ??? ???? 17, 18? ??? ?? ??? ??? ??? ???? ???.

17??? ??? ?????? ????? ???? ???? ???? ???? ???? △??? ??? △?? ? ???? △???? △??? ???? △???? ???? ?? ????.

? ??? ??????? ?? ???? ?? ? 3???? ??? ??? ????? ??? ???? ???? ???.

18??? ??? ???～?????～???～???～???～?????～??? ???? 20㎞ ?? ????? ?2? ??? ??????? ????.

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