20.5.5 C¤Î»ú²¼¤²¤Î¥«¥¹¥¿¥Þ¥¤¥º

C¥â¡¼¥É¤È¤½¤Î´ØÏ¢¥â¡¼¥É¤Ç¤Ï¡¢»ú²¼¤²¤Î¥«¥¹¥¿¥Þ¥¤¥º¤Ë¤Ï¡¢ ñ½ã¤Ç¤¹¤¬½ÀÆðÀ­¤Î¤¢¤ëµ¡¹½¤òÍѤ¤¤Æ¤¤¤Þ¤¹¡£ ¤³¤Îµ¡¹½¤Ï2Ãʳ¬¤ÇÆ°ºî¤·¤Þ¤¹¡£ ¤Þ¤º¡¢¹Ô¤ò¤½¤ÎÆâÍƤÈʸ̮¤«¤é¹½Ê¸Åª¤ËʬÎष¤Þ¤¹¡£ ¤Ä¤®¤Ë¡¢¹½Ê¸¹½À®Í×ÁǤγƼïÎà¤Ë¡¢ ¥«¥¹¥¿¥Þ¥¤¥º²Äǽ¤Ê»ú²¼¤²¤Î¥ª¥Õ¥»¥Ã¥È¤òÂбþ¤µ¤»¤Þ¤¹¡£