ÌâÄ¿ÄÚÈÝ
ÊýÁ¿ÐÔ״ͨ³£ÏÔʾ³öһϵÁÐÁ¬ÐøµÄ±íÐÍ¡£ÏÖÓпØÖÆÖ²Îï¸ß¶ÈµÄÁ½¶ÔµÈλ»ùÒòAaºÍBb£¬Î»ÓÚ²»Í¬µÄͬԴȾɫÌåÉÏ¡£ÒÔÀÛ¼ÓЧӦ¾ö¶¨Ö²ÖêµÄ¸ß¶È£¬ÇÒÿ¸öÏÔÐÔ»ùÒòµÄÒÅ´«Ð§Ó¦ÊÇÏàͬµÄ¡£´¿ºÏ×ÓAABB¸ß50ÀåÃ×£¬aabb¸ß30ÀåÃ×£¬ÕâÁ½¸ö´¿ºÏ×ÓÖ®¼äÔÓ½»µÃµ½Fl£¬ÔÙ×Ô½»µÃµ½F2£¬ÔÚF2ÖбíÏÖ40ÀåÃ׸߶ȵĸöÌå»ùÒòÐÍΪ£¨ £©
A£®aaBB B£®AAbb C£®AABb D£®AaBb
ABD
½âÎö:
ÓÉÓÚÐÔ×´ÓÐÀÛ¼ÓЧӦÇÒÿ¸öÏÔÐÔ»ùÒòµÄÒÅ´«Ð§Ó¦ÊÇÏàͬµÄ£¬ÔòÓÐÁ½¸öÏÔÐÔ»ùÒòµÄ»ùÒòÐÍ£¬Æä±íÏÖÐ͸߶ȾùΪ40ÀåÃס£
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿