ÌâÄ¿ÄÚÈÝ
СÃ÷ºÍСÁÁµÄ¼ÒÒÔ¼°ËûÃÇËùÔÚµÄѧУ¶¼ÔÚÒ»Ìõ¶«Î÷×ßÏòµÄÂí·ÅÔ£¬ÆäÖУ¬Ð¡Ã÷¼ÒÔÚѧУÎ÷±ß3ǧÃ×´¦£¬Ð¡ÁÁ¼ÒÔÚѧУµÄ¶«±ß£¨¼ûͼ£©¡£Ò»Ìì·Åѧºó£¬Ð¡ÁÁÑûСÃ÷µ½×Ô¼º¼Ò¹Û¿´×Ô¼ºÐÂÅäÖõĵçÄÔ¡£ËûÃÇÔ¼¶¨£¬Ð¡ÁÁÖ±½Ó´ÓѧУ²½ÐлØ×Ô¼º¼Ò£¬Ð¡Ã÷ÏÈ»Ø×Ô¼º¼ÒÈ¡×ÔÐгµ£¨È¡³µÊ±¼äºöÂÔ²»¼Æ£©£¬È»ºóÆﳵȥСÁÁ¼Ò¡£
ÉèСÃ÷ºÍСÁÁµÄ²½ÐÐËÙ¶ÈÏàͬ£¬Ð¡Ã÷Æï×ÔÐгµµÄËÙ¶ÈÊDz½ÐÐËٶȵÄ4±¶¡£Èç¹ûСÃ÷ÔÚ¾àÀëСÁÁ¼ÒÎ÷±ß0.2ǧÃ×´¦×·ÉÏСÁÁ£¬ÇóСÁÁ¼Òµ½Ñ§Ð£µÄ¾àÀë¡£
Éè²½ÐÐËÙ¶ÈΪa£¬Ð¡ÁÁ¼Òµ½Ñ§Ð£µÄ¾àÀëΪx£¬Ôò£¬½âµÃx = 5.2¡£
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿