Question

1£®Ãϵ¶ûÓÃÍ㶹×öÔÓ½»ÊµÑé²ÄÁÏ£¬×ÓÒ¶»ÆÉ«£¨Y£©¶ÔÂÌÉ«£¨y£©ÎªÏÔÐÔ£¬Ô²Á£ÖÖ×Ó£¨R£©¶ÔÖåÁ£ÖÖ×Ó£¨r£©ÎªÏÔÐÔ£¬Ä³ÈËÓûÆÉ«Ô²Á£ºÍ»ÆÉ«ÖåÁ£µÄÍ㶹½øÐÐÔÓ½»£¬·¢ÏÖºó´ú³öÏÖ4ÖÖÀàÐÍ£¬¶ÔÐÔ×´µÄͳ¼Æ½á¹ûÈçͼËùʾ£¬Çë¾Ýͼ»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©¸ù¾ÝÉÏÊöʵÑé½á¹û¿ÉÅжϣ¬Ç×±¾»ÆÉ«Ô²Á£µÄ»ùÒòÐÍÊÇYyRr£®
£¨2£©ÔÚF₁ÖбíÏÖÐͲ»Í¬ÓÚÇ×±¾µÄÊÇÂÌÔ²¡¢ÂÌÖ壬ËüÃÇÖ®¼äµÄÊýÁ¿±ÈΪ1£º1£®
£¨3£©¶ÔÇ×±¾»ÆÉ«Ô²Á£Í㶹½øÐв⽻£¬²â½»ºó´úÆä±íÏÖÐͼ°±ÈÀýΪ»ÆÔ²£º»ÆÖ壺ÂÌÔ²£ºÂÌÖå=1£º1£º1£º1£®
£¨4£©F₁ÖлÆÉ«ÖåÁ£Í㶹µÄ»ùÒòÐÍΪYYrr¡¢Yyr£¬½«F₁ÖеÄÈ«²¿»ÆÉ«ÖåÁ£Í㶹ÓëÂÌÉ«ÖåÁ£Í㶹ÔÓ½»£¬ºó´úÖеÄÐÔ×´±íÏÖΪ»ÆÖå¡¢ÂÌÖ壬ÆäÊýÁ¿±ÈΪ3£º1£®

Answer 1

·ÖÎö ¸ù¾ÝÌâÒâºÍͼʾ·ÖÎö¿ÉÖª£º»ÆÉ«Ô²Á£ºÍÂÌÉ«Ô²Á£½øÐÐÔÓ½»µÄºó´úÖУ¬Ô²Á££ºÖåÁ£=3£º1£¬ËµÃ÷Ç×±¾µÄ»ùÒò×é³ÉΪRrºÍRr£»»ÆÉ«£ºÂÌÉ«=1£º1£¬ËµÃ÷Ç×±¾µÄ»ùÒò×é³ÉΪYyºÍyy£®ÔÓ½»ºó´úF₁ÖУ¬·Ö±ðÊÇ»ÆÉ«Ô²Á££¨1YyRR¡¢2YyRr£©¡¢»ÆÉ«ÖåÁ££¨1Yyrr£©¡¢ÂÌÉ«Ô²Á££¨1yyRR¡¢2yyRr£©ºÍÂÌÉ«ÖåÁ££¨1yyrr£©£»ÊýÁ¿±ÈΪ3£º1£º3£º1£®

½â´ð ½â£º£¨1£©¸ù¾ÝÔÓ½»ºó´úµÄ±ÈÀýºÍÉÏÊö·ÖÎö£¬¿ÉÒÔÅжÏÇ×±¾µÄ»ùÒòÐÍΪYyRr£¨»ÆÉ«Ô²Á££©ºÍyyRr£¨ÂÌÉ«Ô²Á££©£®
£¨2£©ÔÚÔÓ½»ºó´úF₁ÖУ¬»ùÒòÐÍÓÐ6ÖÖ£¬±íÏÖÐÍÓÐ4ÖÖ£¬·Ö±ðÊÇ»ÆÉ«Ô²Á££¨1YyRR¡¢2YyRr£©¡¢»ÆÉ«ÖåÁ££¨1Yyrr£©¡¢ÂÌÉ«Ô²Á££¨1yyRR¡¢2yyRr£©ºÍÂÌÉ«ÖåÁ££¨1yyrr£©£»ÊýÁ¿±ÈΪ3£º1£º3£º1£®·ÇÇ×±¾ÀàÐÍÊÇ»ÆÉ«ÖåÁ£ºÍÂÌÉ«ÖåÁ££¬ËüÃÇÖ®¼äµÄÊýÁ¿±ÈΪ1£º1£®
£¨3£©ÓÉÓÚÇ×±¾»ÆÉ«Ô²Á£Í㶹µÄ»ùÒòÐÍΪYyRr£¬ËùÒÔ¶ÔÆä½øÐв⽻£¬²â½»ºó´úÆä±íÏÖÐͼ°±ÈÀýΪ»ÆÉ«Ô²Á££ºÂÌÉ«Ô²Á££º»ÆÉ«ÖåÁ££ºÂÌÉ«ÖåÁ£=1£º1£º1£º1£®
£¨4£©F₁ÖлÆÉ«ÖåÁ£Í㶹µÄ»ùÒòÐÍΪYYrrºÍYyrr£¬±ÈÀýΪ1£º1£®½«F₁ÖеÄÈ«²¿»ÆÉ«ÖåÁ£Í㶹ÓëÂÌÉ«ÖåÁ£Í㶹ÔÓ½»£¬ºó´úÖеÄÐÔ×´±íÏÖΪ»ÆÖå¡¢ÂÌÖ壬ÆäÊýÁ¿±ÈΪ£¨$\frac{1}{2}$+$\frac{1}{2}$¡Á$\frac{1}{2}$£©£º£¨$\frac{1}{2}$¡Á$\frac{1}{2}$£©=3£º1£®
¹Ê´ð°¸Îª£º
£¨1£©YyRr  
£¨2£©ÂÌÔ²  ÂÌÖå  1£º1   
£¨3£©»ÆÔ²£º»ÆÖ壺ÂÌÔ²£ºÂÌÖå=1£º1£º1£º1
£¨4£©YYrr¡¢Yyrr  »ÆÖå¡¢ÂÌÖå    3£º1

µãÆÀ ±¾Ì⿼²é»ùÒò×ÔÓÉ×éºÏ¶¨ÂɵÄÏà¹Ø֪ʶ£¬ÒâÔÚ¿¼²éѧÉúµÄʶͼÄÜÁ¦ºÍÅжÏÄÜÁ¦£¬ÔËÓÃËùѧ֪ʶ×ۺϷÖÎöÎÊÌâµÄÄÜÁ¦£®»ùÒòµÄ·ÖÀ붨ÂÉÊÇ»ùÒòµÄ×ÔÓÉ×éºÏ¶¨ÂɵĻù´¡£¬Òò´ËÔÚ½â´ð±¾Ìâʱ£¬Ê×ÏÈÀûÓ÷ÖÀ붨ÂɶÔÁ½¶Ô»ùÒòÖð¶Ô¿¼ÂÇ£¬È»ºóÔÙÀûÓó˷¨·¨Ôò½øÐÐ×éºÏ£®