???―????(???)? ???? 2? ???―????(????)? ?? ?40? ??????????? ??? ???. ?? ?? ?? ????? ??? ?? 5? ???―????? 30? ????????? ??? ???? ???? ? ??? ?? ???? 17?16?? ?? ? 2????? 15?4? ?? 2?0?? ????. ???? ???(????)? ?? ?? ???? ????? ???―????(????)? 2?0?? ??? 2??? ???. ???? ????? ????? ??? ???(????)? ??? 3??? ??? ?? ???(????)? 2?1? ???, ??? ????. ??????? ???? 4? ???(????)? ???? ???? ??? ??? ???(????)? 2?1? ????. ?? ???? ????? ???―????(????)? ???―????(??????)? 2?0?? ????. 〈?????〉