ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿¹ûÓ¬ÊÇÒÅ´«Ñ§Öг£ÓõÄʵÑé²ÄÁÏ£¬ÏÂͼһΪij´ÆÐÔ¹ûÓ¬µÄÌåϸ°ûʾÒâͼ¡£Í¼¶þΪ±íÏÖÐ;ùΪ»ÒÉíֱëµÄ¹ûÓ¬ÔÓ½»£¬F1µÄ±íÏÖÐÍÓë±ÈÀý¡£Çë¾Ýͼ·ÖÎö»Ø´ð£º
£¨1£©Í¼Ò»Ëùʾϸ°ûÖÐÓÐ__________¶ÔͬԴȾɫÌ壬ÓÐ__________¸öȾɫÌå×é¡£
£¨2£©Í¼Ò»Ï¸°ûÖÐËùº¬µÄ»ùÒòÔÚÒÅ´«Ê±×ñÑ__________________¶¨ÂÉ¡£
£¨3£©¾Ýͼ¶þ¿ÉÖª¿ØÖƹÙëºÍ·Ö²æëµÄ»ùÒòλÓÚ__________ȾɫÌåÉÏ¡£F1ÖбíÏÖÐÍΪ»ÒÉíֱëµÄ´ÆÐÔ¸öÌåÖУ¬´¿ºÏ×ÓËùÕ¼±ÈÀýΪ__________¡£
£¨4£©ÈôÖ»¿¼ÂǹûÓ¬µÄ»ÒÉí¡¢ºÚÉíÕâ¶ÔÏà¶ÔÐÔ×´£¬F1ÖлÒÉí¹ûÓ¬×ÔÓɽ»ÅäµÃµ½F2£¬ÔòF2»ÒÉí¹ûÓ¬Öд¿ºÏ×ÓËùÕ¼±ÈÀýΪ__________¡£
¡¾´ð°¸¡¿ 4 2 »ùÒòµÄ×ÔÓÉ×éºÏ¶¨ÂÉ X 1/6 1/2
¡¾½âÎö¡¿ÊÔÌâ·ÖÎö£ºÍ¼Ò»ÖдÆÐÔ¹ûÓ¬Ìåϸ°ûÄÚȾɫÌå×é³Éͼ£¬¹²º¬4¶ÔͬԴȾɫÌ壬2¸öȾɫÌå×飻ÓÐ3¶ÔͬԴȾɫÌåÉϱê×¢ÓÐÒ»¶Ô»ùÒò£¬ËùÒÔ»ùÒòÐÍΪAaDdXWXw¡£Í¼¶þΪ±íÏÖÐ;ùΪ»ÒÉíֱëµÄ¹ûÓ¬ÔÓ½»£¬F1µÄ±íÏÖÐÍÓë±ÈÀý¡£ÆäÖлÒÉí£ººÚÉí=£¨3/4+3/8£©:(1/4+1/8)=3:1£¬ÇÒ×Ó´ú´ÆÐÛ¹ûÓ¬µÄÐÔ×´·ÖÀë±ÈÏàͬ£¬ËµÃ÷»ÒÉí¶ÔºÚÉíΪÏÔÐÔ£¬ÇÒ¿ØÖÆÆä»ùÒòλÓÚ³£È¾É«ÌåÉÏÒÅ´«£»F1´ÆÐÔ¹ûÓ¬ÖÐֱëºÍ·Ö²æëËùÕ¼±ÈÀý·Ö±ðΪ3/4¡¢1/4£¬¶øÐÛÐÔ¹ûÓ¬ÖÐֱëºÍ·Ö²æëËùÕ¼±ÈÀý¸÷Ϊ1/2£¬ËµÃ÷ֱë¶Ô·Ö²æëΪÏÔÐÔÇÒ¿ØÖÆ»ùÒòλÓÚXȾɫÌåÉÏÒÅ´«¡£
£¨1£©½áºÏÇ°ÃæµÄ·ÖÎö¿ÉÖª£¬Í¼Ò»Ëùʾϸ°ûÖÐÓÐ4¶ÔͬԴȾɫÌ壬ÓÐ2¸öȾɫÌå×é¡£
£¨2£©½áºÏÇ°ÃæµÄ·ÖÎö¿ÉÖª£¬Í¼Ò»Ï¸°ûÖÐËùº¬µÄ»ùÒò¸÷ÔÚ²»Í¬¶ÔͬԴȾɫÌåÉÏ£¬ËùÒÔËüÃÇÔÚÒÅ´«Ê±£¬·ÇͬԴȾɫÌåÉϵĻùÒòÄÜ·¢Éú×ÔÓÉ×éºÏ£¬¹Ê ËüÃǵÄÒÅ´«×ñÑ»ùÒòµÄ×ÔÓÉ×éºÏ¶¨ÂÉ¡£
£¨3£©½áºÏÇ°ÃæµÄ·ÖÎö¿ÉÖª£¬¿ØÖÆֱëºÍ·Ö²æëµÄ»ùÒòλÓÚXȾɫÌåÉÏ¡£Éè¿ØÖÆֱëºÍ·Ö²æëµÄ»ùÒò·Ö±ðΪBºÍb£¬¿ØÖÆ»ÒÉíºÍºÚÉíµÄ»ùÒò·Ö±ðΪCºÍc£¬ÔòÇ×±¾µÄ»ùÒòÐÍΪ£ºCcXBXb¡¢CcXBY¡£F1ÖбíÏÖÐÍΪ»ÒÉíֱëµÄ´ÆÐÔ¸öÌ壨C_XBX_£©Õ¼3/4£¬ÆäÖд¿ºÏ×Ó£¨CCXBXB£©ÔÚF1ÖÐÕ¼±ÈÀýΪ1/4¡Á1/2=1/8£¬ËùÒÔF1ÖбíÏÖÐÍΪ»ÒÉíֱëµÄ´ÆÐÔ¸öÌåÖУ¬´¿ºÏ×ÓËùÕ¼±ÈÀýΪ1/8¡Á3/4=1/6¡£
£¨4£©ÈôÖ»¿¼ÂǹûÓ¬µÄ»ÒÉí¡¢ºÚÉíÕâ¶ÔÏà¶ÔÐÔ×´£¬F1ÖлÒÉí¹ûÓ¬ÓÐÁ½ÖÖ»ùÒòÐÍ£¬·Ö±ðËùÕ¼µÄ±ÈÀýΪCC:Cc=1:2£¬×ÔÓɽ»Å䣬²úÉúº¬CµÄÅä×ÓÕ¼2/3,cµÄÅä×ÓÕ¼1/3£¬µÃµ½µÄF2ÖУ¬»ÒÉí¹ûÓ¬£¨C_£©Õ¼1-1/3¡Á1/3=8/9£¬F2»ÒÉí´¿ºÏ×Ó£¨CC£©ËùÕ¼±ÈÀýΪ2/3¡Á2/3=4/9£¬ËùÒÔF2»ÒÉí¹ûÓ¬Öд¿ºÏ×ÓËùÕ¼±ÈÀýΪ4/9¡Â8/9=1/2¡£