·ÖÎö ¾Ýͼʾ¿ÉÖª£¬Í¼Ê¾ÎªÒÒ´¼½øÈë»úÌåµÄ´úл;¾¶£¬ËµÃ÷»ùÒò¿ØÖÆÐÔ×´ÊÇͨ¹ý¿ØÖÆøµÄºÏ³ÉÀ´¿ØÖÆ´úл¹ý³Ì£¬´Ó¶ø¼ä½Ó¿ØÖÆÉúÎïµÄÐÔ×´£¬ÆäÖС°°×Á³â¨ºï¡±È±·¦Ã¸1£¬»ùÒòÐÍΪaa_£¬£»¡°ºìÁ³â¨ºï¡±È±·¦Ã¸2£¬»ùÒòÐÍΪA_B_£¬¡°²»×í⨺¾ßÓÐø1ºÍø2£¬»ùÒòÐÍΪA_bb£®
½â´ð ½â£º£¨1£©ÒÒ´¼½øÈë»úÌåµÄ´úл;¾¶£¬ËµÃ÷»ùÒò¿ØÖÆÐÔ×´ÊÇͨ¹ý¿ØÖÆøµÄºÏ³ÉÀ´¿ØÖÆ´úл¹ý³Ì£¬´Ó¶ø¼ä½Ó¿ØÖÆÉúÎïµÄÐÔ×´£¬´ÓÒÔÉÏ×ÊÁÏ¿ÉÅжÏ⨺ïµÄ¾ÆÁ¿´óСÓëÐÔ±ð¹Øϵ²»´ó£¬ÅжϵÄÀíÓÉÊÇÓë¾Æ¾«´úлÓйصĻùÒòλÓÚ³£È¾É«ÌåÉÏ£®
£¨2£©»ùÒòbÓÉ»ùÒòBÍ»±äÐγɣ¬»ùÒòBÒ²¿ÉÒÔÍ»±ä³ÉÆäËû¶àÖÖÐÎʽµÄµÈλ»ùÒò£¬ËµÃ÷»ùÒòÍ»±ä¾ßÓ⻶¨ÏòÐÔ£®Èô¶Ô⨺ï½øÐлùÒò×é²âÐò£¬ÐèÒª¼ì²â20Ìõ³£È¾É«ÌåºÍX¡¢YȾɫÌ壬¹²22ÌõȾɫÌ壮
£¨3£©¾Ý·ÖÎö¿ÉÖª¡°ºìÁ³â¨ºï¡±µÄ»ùÒòÐÍΪA_B_£¬¹Ê¹²ÓÐAABB£¬AaBb£¬AaBB£¬AABb4ÖÖ£»Ò»¶Ô¡°ºìÁ³â¨ºï¡±£¬»ùÒòÐÍΪA_B_£¬ËùÉúµÄ×Ó´úÖУ¬ÓбíÏÖΪ¡°²»×í⨺A_bbºÍ¡°°×Á³â¨ºï¡±aa_£¬¹Ê¡°ºìÁ³â¨ºï¡±µÄ»ùÒòÐÍΪAaBb£¬ÈôÔÙÉúÒ»¸ö¡°²»×í⨺A_bbÐÛÐÔ¸öÌåµÄ¸ÅÂÊÊÇ $\frac{3}{4}$¡Á$\frac{1}{4}$¡Á$\frac{1}{2}$=$\frac{3}{32}$£®
£¨4£©¸Ã¡°°×Á³â¨ºï¡±µÄ»ùÒòÐÍΪaa_£¬¿ÉÄÜΪaaBB£¬aaBb£¬aabb£¬Óë¶àÖ»´¿ºÏµÄ¡°²»×í⨺½»Å䣮
ÈôΪaaBB£¬Óë¶àÖ»´¿ºÏµÄ¡°²»×í⨺½»Å䣨AAbb£©£¬Ôòºó´ú»ùÒòÐ;ùΪAaBb£¬¼´È«Îª¡°ºìÁ³â¨ºï¡±£»
ÈôΪaaBb£¬Óë¶àÖ»´¿ºÏµÄ¡°²»×í⨺½»Å䣨AAbb£©£¬Ôòºó´ú»ùÒòÐÍΪAaBb£ºAabb=1£º1£¬¼´¡°ºìÁ³â¨ºï¡±£º¡°²»×í⨺½Ó½üÓÚ1£º1£»
ÈôΪaabb£¬Óë¶àÖ»´¿ºÏµÄ¡°²»×í⨺½»Å䣨AAbb£©£¬Ôòºó´ú»ùÒòÐ;ùΪAabb£¬¼´ºó´úȫΪ¡°²»×í⨺£®
¹Ê´ð°¸Îª£º
£¨1£©¿ØÖÆøµÄºÏ³ÉÀ´¿ØÖÆ´úл¹ý³Ì£¬´Ó¶ø¿ØÖÆÉúÎïµÄÐÔ×´ Óë¾Æ¾«´úлÓйصĻùÒòλÓÚ³£È¾É«ÌåÉÏ
£¨2£©²»¶¨ÏòÐÔ 22
£¨3£©4 $\frac{3}{32}$
£¨4£©È«Îª¡°²»×í⨺aabb
µãÆÀ ±¾Ì⿼²é»ùÒòµÄ×ÔÓÉ×éºÏ¶¨ÂÉ¡¢»ùÒòÓëÐÔ×´¹Øϵ¡¢È¾É«Ìå±äÒìµÄÏà¹Ø֪ʶ£¬ÒâÔÚ¿¼²éѧÉúµÄʶͼÄÜÁ¦ºÍÅжÏÄÜÁ¦£¬ÔËÓÃËùѧ֪ʶ×ۺϷÖÎöÎÊÌâµÄÄÜÁ¦£¬ÄѶÈÊÊÖУ®
Ä꼶 | ¸ßÖÐ¿Î³Ì | Ä꼶 | ³õÖÐ¿Î³Ì |
¸ßÒ» | ¸ßÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ | ³õÒ» | ³õÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ |
¸ß¶þ | ¸ß¶þÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õ¶þ | ³õ¶þÃâ·Ñ¿Î³ÌÍƼö£¡ |
¸ßÈý | ¸ßÈýÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õÈý | ³õÈýÃâ·Ñ¿Î³ÌÍƼö£¡ |
¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£º½â´ðÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£º½â´ðÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | $\frac{1}{4}$ºÍ$\frac{1}{4}$ | B£® | $\frac{1}{8}$ºÍ$\frac{1}{8}$ | C£® | $\frac{1}{8}$ºÍ$\frac{1}{4}$ | D£® | $\frac{1}{4}$ºÍ$\frac{1}{8}$ |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | ¼×²¡Îª³£È¾É«ÌåÒþÐÔÒÅ´«²¡£¬ÒÒ²¡Îª°éXȾɫÌåÒþÐÔÒÅ´«²¡ | |
B£® | ¢ò1Óë¢ó5µÄ»ùÒòÐÍÏàͬµÄ¸ÅÂÊΪ$\frac{1}{4}$ | |
C£® | Èô¢ó7µÄÐÔȾɫÌå×é³ÉΪXXY£¬Ôò²úÉúÒì³£Éúֳϸ°ûµÄ×î¿ÉÄÜÊÇÆäĸÇ× | |
D£® | ¢ò3Óë¢ò4µÄºó´úÖÐÀíÂÛÉϹ²ÓÐ9ÖÖ»ùÒòÐͺÍ4ÖÖ±íÏÖÐÍ |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£º½â´ðÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£º½â´ðÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | B£® | C£® | D£® |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£º½â´ðÌâ
Ç×´úÀàÐÍ ×Ó´úÀàÐÍ | µÚÒ»×é | µÚ¶þ×é | µÚÈý×é |
Ë«Ç×ȫΪ˫ÑÛƤ | Ë«Ç×ÖÐÖ»ÓÐÒ»¸öË«ÑÛƤ | Ë«Ç×ÖÐȫΪµ¥ÑÛƤ | |
Ë«ÑÛƤÊý | 120 | 120 | ÎÞ |
µ¥ÑÛƤÊý | 74 | 112 | È«²¿×Ó´ú¾ùΪµ¥ÑÛƤ |
²é¿´´ð°¸ºÍ½âÎö>>
°Ù¶ÈÖÂÐÅ - Á·Ï°²áÁбí - ÊÔÌâÁбí
ºþ±±Ê¡»¥ÁªÍøÎ¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨Æ½Ì¨ | ÍøÉÏÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | µçÐÅթƾٱ¨×¨Çø | ÉæÀúÊ·ÐéÎÞÖ÷ÒåÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | ÉæÆóÇÖȨ¾Ù±¨×¨Çø
Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com