ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿ÔÚÃϵ¶ûÁ½¶ÔÏà¶ÔÐÔ×´ÔÓ½»ÊµÑéÖУ¬F1»ÆÉ«Ô²Á£Í㶹£¨YyRr£©×Ô½»²úÉúF2¡£ÏÂÁбíÊöÖÐÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A.F1²úÉú1¸öYR£¬1¸öYr£¬1¸öyR£¬1¸öyrÅä×Ó
B.F1²úÉúÒÅ´«Òò×Ó×é³ÉΪYRµÄÂÑϸ°ûºÍÒÅ´«Òò×Ó×é³ÉΪYRµÄ¾«×ÓÊýÁ¿Ö®±ÈΪ1¡Ã1
C.×ÔÓÉ×éºÏ¶¨ÂÉÊÇÖ¸F1²úÉúµÄ4ÖÖÀàÐ͵ľ«×ÓºÍÂÑϸ°û¿ÉÒÔ×ÔÓÉ×éºÏ
D.F1²úÉúµÄ¾«×ÓÖУ¬ÒÅ´«Òò×Ó×é³ÉΪYRºÍÒÅ´«Òò×Ó×é³ÉΪyrµÄ±ÈÀýΪ1¡Ã1
¡¾´ð°¸¡¿D
¡¾½âÎö¡¿
Á½¶ÔÏà¶ÔÐÔ×´µÄ»ÆÉ«Ô²Á£Í㶹ʵÑ飬×ñÑ»ùÒòµÄ×ÔÓÉ×éºÏ¶¨ÂÉ£ºF1»ÆÉ«Ô²Á£Í㶹YyRr£¬ÔÚ¼õÊý·ÖÁѹý³ÌÖУ¬Í¬Ô´È¾É«Ìå·ÖÀ룬·ÇͬԴȾɫÌåÉϵķǵÈλ»ùÒò×ÔÓÉ×éºÏ£¬ÄܲúÉú4ÖÖ±ÈÀýÏàµÈµÄÅä×Ó£¬F1»ÆÉ«Ô²Á£Í㶹£¨YyRr£©×Ô½»²úÉúF2ΪY_R_£ºY_rr£ºyyR_£ºyyrr=9£º3£º3£º1£®
A¡¢F1£¨YyRr£©²úÉú4ÖÖ¶ø²»ÊÇ4¸öÅä×Ó£¬±ÈÀýΪ1£º1£º1£º1£¬A´íÎó£»
B¡¢F1²úÉú»ùÒòÐÍYRµÄÂÑϸ°ûÊýÁ¿±È»ùÒòÐÍYRµÄ¾«×ÓÊýÁ¿ÉÙ£¬¼´ÐÛÅä×Ó¶àÓÚ´ÆÅä×Ó£¬B´íÎó£»
C¡¢»ùÒò×ÔÓÉ×éºÏ¶¨ÂÉÊÇÖ¸F1ÔÚ¼õÊý·ÖÁѹý³ÌÖУ¬Í¬Ô´È¾É«Ìå·ÖÀ룬·ÇͬԴȾɫÌåÉϵķǵÈλ»ùÒò×ÔÓÉ×éºÏ£¬C´íÎó£»
D¡¢F1²úÉúµÄ¾«×ÓÓÐ4ÖÖ£¬»ùÒòÐÍ·Ö±ðΪYR¡¢yr¡¢Yr¡¢yR£¬±ÈÀýΪ1£º1£º1£º1£¬¹Ê»ùÒòÐÍΪYRºÍ»ùÒòÐÍΪyrµÄ±ÈÀýΪ1£º1£¬DÕýÈ·¡£
¹ÊÑ¡D¡£