[??????]18?? A20? 外

◇18?? A20? ‘???? ?? ??’ ???? “1963??? ?? ????? ???”? ??? “1963?? ‘1962? ?? ???’ ???? ??? ??? ?? ???? ????’? ??? ????.

◇21?? A19? ‘??? ??? ??? ??’ ???? ??? ?? ???? ??? ‘?? 4? km2’? ?? ‘?? 400? km2’???.