Question

8£®ÃܱÕÈÝÆ÷ÄÚÓÐA¡¢B¡¢C¡¢DËÄÖÖÎïÖÊ£¬ÔÚÒ»¶¨Ìõ¼þϳä·Ö·´Ó¦£¬²âµÃ·´Ó¦Ç°ºó¸÷ÎïÖʵÄÖÊÁ¿ÈçÏÂ±í£¬ÏÂ
ÁÐ˵·¨²»ÕýÈ·µÄÊÇ£¨¡¡¡¡£©

ÎïÖÊ	A	B	C	D
·´Ó¦Ç°ÖÊÁ¿/g	19.7	8.7	31.6	0.4
·´Ó¦ºóÖÊÁ¿/g	´ý²â	17.4	0	3.6

• A£® ÎïÖÊCÒ»¶¨ÊÇ»¯ºÏÎÎïÖÊD²»Ò»¶¨Êǵ¥ÖÊ
• B£® ·´Ó¦ºóÃܱÕÈÝÆ÷ÖÐAµÄÖÊÁ¿Îª19.7¿Ë
• C£® ·´Ó¦¹ý³ÌÖУ¬ÎïÖÊBÓëD±ä»¯µÄÖÊÁ¿±ÈΪ87£º32
• D£® ÈôAÓëCÏà¶Ô·Ö×ÓÖÊÁ¿Ö®±ÈΪ197£º158£¬Ôò·´Ó¦ÖÐAÓëC»¯Ñ§¼ÆÁ¿ÊýÖ®±ÈΪ1£º2

Answer 1

·ÖÎö ¸ù¾ÝÖÊÁ¿Êغ㶨ÂÉ¿ÉÖª£¬BÖÊÁ¿Ôö¼Ó£¬ÊÇÉú³ÉÎÔö¼ÓµÄÖÊÁ¿=£¨17.4-8.7£©=8.7¿Ë£»CÖÊÁ¿¼õС£¬ÊÇ·´Ó¦Î¼õСµÄÖÊÁ¿=31.6-0=31.6¿Ë£»DµÄÖÊÁ¿Ôö¼Ó£¬ÊÇÉú³ÉÎÔö¼ÓµÄÖÊÁ¿=3.6-0.4=3.2¿Ë£®×ÜÉÏ·ÖÎöÔö¼ÓµÄÖÊÁ¿=£¨8.7¿Ë+3.2¿Ë£©=11.9¿Ë£¬¼õСµÄÖÊÁ¿ÊÇ31.6¿Ë£¬ËùÒÔAµÄÖÊÁ¿Ó¦¸ÃÔö¼Ó£¬ÊÇÉú³ÉÎÔö¼ÓµÄÖÊÁ¿=31.6¿Ë-11.9¿Ë=19.7¿Ë£®Òò´Ë·´Ó¦ÎïÊÇC£¬Éú³ÉÎïÊÇA¡¢B¡¢D£®

½â´ð ½â£ºA¡¢¸ù¾ÝÖÊÁ¿Êغ㶨ÂÉ£¬·´Ó¦ºóÎïÖÊAµÄÖÊÁ¿Îª£º£¨19.7+8.7+31.6+0.4£©g-£¨17.4+0+3.6£©g=39.4g£»ÎïÖÊA¡¢B¡¢D·´Ó¦ºóÖÊÁ¿Ôö¼Ó£¬Îª¸Ã·´Ó¦µÄÉú³ÉÎÎïÖÊC·´Ó¦ºóÖÊÁ¿¼õС£¬Îª·´Ó¦µÄ·´Ó¦ÎÒò´Ë·´Ó¦¿É±íʾΪC¡úA+B+D£¬ÊôÓÚÒ»ÖÖÎïÖÊ·Ö½âÉú³ÉÈýÖÖÎïÖʵķֽⷴӦ£»CÊǷֽⷴӦµÄ·´Ó¦Îһ¶¨ÊôÓÚ»¯ºÏÎDÊÇÉú³ÉÎ¿ÉÄÜΪµ¥ÖÊ£¬¹Ê˵·¨´íÎó£»
B¡¢ÓÉA·ÖÎö¿ÉÖª£¬·´Ó¦ºóÃܱÕÈÝÆ÷ÖÐAµÄÖÊÁ¿Îª39.4¿Ë£¬¹Ê˵·¨´íÎó£»
C¡¢·´Ó¦¹ý³ÌÖУ¬ÎïÖÊBÓëÎïÖÊDµÄÖÊÁ¿±ÈΪ£¨17.4-8.7£©g£º£¨3.6-0.4£©g=87£º32£¬¹Ê˵·¨ÕýÈ·£»
D¡¢AµÄÖÊÁ¿Ôö¼Ó£¬Ôö¼ÓµÄÖÊÁ¿ÊÇ19.7¿Ë£¬CµÄÖÊÁ¿¼õС£¬¼õСµÄÖÊÁ¿ÊÇ31.6¿Ë£®ÒòΪÎïÖÊAÓëÎïÖÊCµÄÏà¶Ô·Ö×ÓÖÊÁ¿Ö®±ÈΪ197£º158£¬ËùÒÔ·´Ó¦ÖÐAÓëCµÄ»¯Ñ§¼ÆÁ¿ÊýÖ®±ÈΪ$\frac{19.7}{197}£º\frac{31.6}{158}$=1£º2£¬¹ÊÕýÈ·£®
¹ÊÑ¡£ºAB£®

µãÆÀ ±¾ÌâÄѶȲ»´ó£¬¿¼²éµÄÊÇÖÊÁ¿Êغ㶨ÂɵÄÓ¦Ó㬽âÌâµÄ¹Ø¼üÊÇ·ÖÎö±íÖÐÊý¾Ý£¬Áé»îÔËÓÃÖÊÁ¿Êغ㶨ÂÉ£®