??? ?????? 20? ?? ????? ??? ??? ????? ?? ??? ???? ???? ??? ???.

?? ???? ???? ??? 2??? ???? ??? ? 70?? ??? ???? ????.

????? ????? ????? ???? ???? ???, ????, ???? ?? ???? ??? ????? ?? ??. ??????? ????????, ????, ?????, ????, ????? ??? ?? ?????? ????.

????????? ??? ??? ????? ?? ??? ???? ??? ???? ??? ???? ??? ??? ? ??? ?? ?????? ?? ?? ??? ?? ?????? ??? ??? ????? 80? ??? ???? ??? ????? ??? ???? ??? ???? ??? ?? ????, ????, ????? ??? ??? ??? ??.

????? ‘1?1?(一老一新)’? ????. ‘1?’? ???? ???? ???? ‘1?’? ??? ??? ??? ??? ????? ???? ‘3??’? ?????? ????.

????? ???? ????? ?? ?????, ?????, ????????, ?????, ?????, ?????, ????? ??? ???.

????? ???, ???? ?? ???? ?????????, ???, ???, ??? ??? ????? ????? ?? ?? ?? ????? ??? ???? ?? ??? ??? ????.