Ò»¡¢Ñ¡ÔñÌ⣺±¾´óÌâ¹²10СÌ⣬ÿСÌâ4·Ö£¬¹²40·Ö.ÔÚÿСÌâ¸ø³öµÄËĸöÑ¡ÏîÖУ¬Ö»ÓÐÒ»ÏîÊÇ·ûºÏÒªÇóµÄ.
£¨1£©ÒÑ֪ȫ¼¯ £¬¼¯ºÏ £¬ £¬Ôò =
£¨A£© £¨B£©
£¨C£© £¨D£©
£¨2£©Éè £¬ £¬ £¬Ôò
£¨A£© £¨B£©
£¨C£© ¡¡ £¨D£©
£¨3£©·½³Ì Óн⠣¬Ôò ËùÔÚµÄÇø¼äÊÇ
£¨A£© £¨B£© £¨C£© £¨D£©
£¨4£©ÔÚµÈÑüÖ±½ÇÈý½ÇÐÎ ÖУ¬ Ϊб±ß ÉÏÈÎÒâÒ»µã£¬Ôò µÄ³¤Ð¡ÓÚ µÄ³¤µÄ¸ÅÂÊΪ
£¨A£© £¨B£©
£¨C£© £¨D£©