ÌâÄ¿ÄÚÈÝ
Èçͼ£¬¡Ï1=60¡ã£¬¡Ï2=60¡ã£¬¡Ï3=57¡ã£¬Ôò¡Ï4=57¡ã£¬ÏÂÃæÊÇA£¬B£¬C£¬DËĸöͬѧµÄÍÆÀí¹ý³Ì£¬ÄãÈÏΪÍÆÀíÕýÈ·µÄÊÇ£¨¡¡¡¡£©

A£®ÒòΪ¡Ï1=60¡ã=¡Ï2£¬ËùÒÔa¡Îb£¬ËùÒÔ¡Ï4=¡Ï3=57¡ã |
B£®ÒòΪ¡Ï4=57¡ã=¡Ï3£¬ËùÒÔa¡Îb£¬¹Ê¡Ï1=¡Ï2=60¡ã |
C£®ÒòΪ¡Ï2=¡Ï5£¬ÓÖ¡Ï1=60¡ã£¬¡Ï2=60¡ã£¬¹Ê¡Ï1=¡Ï5=60¡ã£¬ËùÒÔa¡Îb£¬ËùÒÔ¡Ï4=¡Ï3=57¡ã |
D£®ÒòΪ¡Ï1=60¡ã£¬¡Ï2=60¡ã£¬¡Ï3=57¡ã£¬ËùÒÔ¡Ï1=¡Ï3=¡Ï2-¡Ï4=60¡ã-57¡ã=3¡ã£¬¹Ê¡Ï4=57¡ã |

A¡¢ÒòΪ¡Ï1=60¡ã=¡Ï2£¬²»ÄÜÅж¨a¡Îb£¬´íÎó£»
B¡¢ÒòΪ¡Ï4=57¡ã=¡Ï3£¬²»ÄÜÅж¨a¡Îb£¬´íÎó£»
CÕýÈ·£»
D¡¢ÒòΪ²»ÄÜÅж¨a¡Îb£¬ËùÒÔ²»ÄܼÆËã³ö¡Ï4=57¡ã£¬´íÎó£®
¹ÊÑ¡C£®
B¡¢ÒòΪ¡Ï4=57¡ã=¡Ï3£¬²»ÄÜÅж¨a¡Îb£¬´íÎó£»
CÕýÈ·£»
D¡¢ÒòΪ²»ÄÜÅж¨a¡Îb£¬ËùÒÔ²»ÄܼÆËã³ö¡Ï4=57¡ã£¬´íÎó£®
¹ÊÑ¡C£®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿