ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Ð¡ÊóβÐεÄÍäÇúÓëÕý³£ÎªÒ»¶ÔÏà¶ÔÐÔ×´£¬ÓɵÈλ»ùÒòB¡¢b¿ØÖÆ£¬ÈôСÊóµÄÊܾ«ÂÑÎÞ¿ØÖÆβÐεĻùÒò£¨B¡¢b£©£¬½«µ¼ÖÂÅßÌ¥ÖÂËÀ¡£Õý³£Î²´ÆÊóÓëÍäÇúβÐÛÊó½»Å䣬F1´ÆÊóȫΪÍäÇú⣬ÐÛÊóȫΪÕý³£Î²¡£Çë»Ø´ð£º
£¨1£©¿ØÖÆСÊóβÐÎÐÔ×´µÄ»ùÒòλÓÚ________ȾɫÌåÉÏ£¬ÇÒÍäβÐÔ״Ϊ ÐÔ¡£
£¨2£©ÈÃF1´ÆÐÛÊó½»Å䣬ÆäÖдÆÊó²úÉúµÄÂÑϸ°ûµÄ»ùÒòÐͼ°±ÈÀýÊÇ £¬F2µÄ±íÏÖÐͼ°±ÈÀýÊÇ ¡£
£¨3£©ÔÚ´ÆÊóȺÌåÖÐÓÐ19¨GµÄÍäÇúβ¸öÌ壬ÔòÊóȺÌåÖÐB»ùÒòµÄƵÂÊΪ___________£¬ÈÃȺÌåÖÐÕý³£Î²ÐÛÊóÓëÍäÇúβ´ÆÊó½»Å䣬ºó´úÖгöÏÖÕý³£Î²ÐÛÊóµÄ¸ÅÂÊΪ__________¡£
£¨4£©ÔÚÒ»´ÎÕý³£Î²´ÆÊóÓëÍäÇúβÐÛÊó½»ÅäÖУ¬F1ÖгöÏÖÁËÒ»Ö»Õý³£Î²´ÆÊó£¨T£©£¬ÍƲâ¿ÉÄÜÊǸ¸±¾²úÉúÅä×ÓʱB»ùÒòÍ»±äΪb»òB»ùÒòËùÔÚȾɫÌåƬ¶ÏȱʧËùÖ£¬Îª¼ìÑéÊǺÎÖÖÔÒòËùÖ£¬Ä³Ñо¿Ð¡×éÈÃÕâÖ»Õý³£Î²´ÆÊó£¨T£©ÓëÍäÇúβÐÛÊó½»ÅäµÃF1ÖеĴÆÊóȫΪÍäÇú⣬ÔÙÈÃF1´ÆÊóÓëÍäÇúβÐÛÊó½»ÅäµÃF2£¬ ÈôF2Ó×ÊóÖдƣºÐÛ£½__________£¬ÔòΪB»ùÒòÍ»±äΪb»ùÒòËùÖ£» ÈôF2Ó×ÊóÖдƣºÐÛ£½__________£¬ÔòΪB»ùÒòËùÔÚȾɫÌåƬ¶ÏȱʧËùÖ¡£
¡¾´ð°¸¡¿£¨1£©X ÏÔ
£¨2£©XB¡ÃXb£½1¡Ã1 ÍäÇúβ´ÆÊó¡ÃÕý³£Î²´ÆÊó¡ÃÍäÇúβÐÛÊó¡ÃÕý³£Î²ÐÛÊó£½1¡Ã1¡Ã1¡Ã1£¨»òÍäÇúβ¡ÃÕý³£Î²£½1¡Ã1£©
£¨3£©0£®1£¨»ò10%£© 9/38
£¨4£©1:1 4:3
¡¾½âÎö¡¿
ÊÔÌâ·ÖÎö£º£¨1£©Õý³£Î²´ÆÊóÓëÍäÇúβÐÛÊó½»Å䣬F1´ÆÊóȫΪÍäÇú⣬ÐÛÊóȫΪÕý³£Î²£¬ºó´ú´ÆÐÛ±íÏÖ²»Ò»Ñù£¬ÇÒ´ÆÐÔºó´úÓëĸ±¾±íÏÖÐÍÏàͬ£¬ÐÛÐÔºó´úÓëĸ±¾±íÏÖÐÍÏàͬ£¬ËµÃ÷¿ØÖƸÃÐÔ×´µÄ»ùÒòÔÚXȾɫÌåÉÏ£¬Õý³£Î²ÊÇÒþÐÔÐÔ×´£¬ÍäÇúβÊÇÏÔÐÔÐÔ×´¡£
£¨2£©¸ù¾ÝÒÔÉÏ·ÖÎö¿É֪ĸ±¾»ùÒòÐÍΪXbXb¡¢¸¸±¾»ùÒòÐÍΪXBY£¬×Ó´ú»ùÒòÐÍΪXBXb¡¢XbY£¬ËùÒÔ×Ó´ú´ÆÊó²úÉúµÄÂÑϸ°ûµÄ»ùÒòÐͼ°±ÈÀýÊÇXB¡ÃXb£½1¡Ã1£¬F1´ÆÐÛÊó½»Å䣬F2»ùÒòÐÍΪXBXb¡¢XbXb¡¢XBY¡¢XbY£¬ËùÒÔF2µÄ±íÏÖÐͼ°±ÈÀýÊÇÍäÇúβ´ÆÊó¡ÃÕý³£Î²´ÆÊó¡ÃÍäÇúβÐÛÊó¡ÃÕý³£Î²ÐÛÊó£½1¡Ã1¡Ã1¡Ã1£¨»òÍäÇúβ¡ÃÕý³£Î²£½1¡Ã1£©¡£
£¨3£©ÒÑÖªÔÚ´ÆÊóȺÌåÖÐÓÐ19¨GµÄÍäÇúβ¸öÌ壬ÔòÕý³£Î²Õ¼81¨GXbXb£¬ËùÒÔXbµÄ»ùÒòƵÂÊÊÇ90%£¬XBµÄ»ùÒòƵÂÊÊÇ1-90%=10%¡£½øÒ»²½¼ÆËãÍäÇúβ´ÆÊóȺÌåЯ´øÕßÕ¼2*90%*10%/19%=18/19¡£
ÈÃȺÌåÖÐÕý³£Î²ÐÛÊóXbYÓëÍäÇúβ´ÆÊó18/19XBXb½»Å䣬ºó´úÖгöÏÖÕý³£Î²ÐÛÊóµÄ¸ÅÂÊΪ18/19*1/4=9/38¡£
£¨4£©¸ù¾ÝÌâÒâ·ÖÎö£¬F1ÖгöÏÖÁËÒ»Ö»Õý³£Î²´ÆÊó£¨T£©£¬ÍƲâ¿ÉÄÜÊǸ¸±¾²úÉúÅä×ÓʱB»ùÒòÍ»±äΪb£¨XbXb£©»òB»ùÒòËùÔÚȾɫÌåƬ¶ÏȱʧËùÖ£¨XXb£©¡£ÈÃÕâÖ»Õý³£Î²´ÆÊó£¨T£©ÓëÍäÇúβÐÛÊó£¨XBY£©½»ÅäµÃF1ÖеĴÆÊóȫΪÍäÇú⣬ÔÙÈÃF1´ÆÊóÓëÍäÇúβÐÛÊó½»ÅäµÃF2£¬ ÈôF2Ó×ÊóÖдƣºÐÛ£½1:1£¬ÔòΪB»ùÒòÍ»±äΪb»ùÒòËùÖ£» ÈôF2Ó×ÊóÖдƣºÐÛ£½4:3£¬ÔòΪB»ùÒòËùÔÚȾɫÌåƬ¶ÏȱʧËùÖ¡£