ÌâÄ¿ÄÚÈÝ

ÔÚ̽¾¿¡°ÎïÖʵÄÖÊÁ¿ÓëÌå»ýµÄ¹Øϵ¡±ÊµÑéÖÐ
£¨1£©Óõ÷½ÚºÃµÄÌìƽ³ÆÒ»¸öÍ­¿éµÄÖÊÁ¿£¬µ±°ÑÍ­¿é·Åµ½Ììƽ×óÅÌÖУ¬ÓÒÅÌÖеÄשÂëºÍÓÎÂëËù´¦µÄλÖÃÈçͼ1ËùʾʱÌìƽƽºâ£®Ç뽫¸ÃÍ­¿éµÄÖÊÁ¿Ìîµ½±í¸ñÖУ®
£¨2£©½«¸ÃÍ­¿é·Åµ½Ê¢ÓÐ60cm3Ë®µÄÁ¿Í²ÖУ¬Á¿Í²ÖеÄË®ÃæÈçͼ2Ëùʾ£¬Ç뽫¸ÃÍ­¿éµÄÌå»ýÌîµ½±í¸ñÖУ®
£¨3£©ÓÃͬÑùµÄ·½·¨²â³öÁíÍâÒ»¸öÍ­¿éºÍÁ½¸öÌú¿éµÄÖÊÁ¿ºÍÌå»ý£¬²âÁ¿½á¹ûÈç±íËùʾ£®
¶ÔÏó©…Êý¾Ý©…ÏîÄ¿ÖÊÁ¿£¨g£©Ìå»ý£¨cm3£©Êýѧ¹«Ê½£¨g/cm3£©
Í­1
Í­244.558.9
Í­33957.8
Í­478107.8
ͨ¹ý¼ÆË㣬½«±í¸ñÖеÄÆäËüÏîÄ¿ÌîдÍêÕû£®
£¨4£©·ÖÎöÓë½áÂÛ£ºÓÉÉÏÊöʵÑéÊý¾Ý¿ÉÖª£¬²»Í¬Ìå»ýµÄͬһÖÖÎïÖʵÄÖÊÁ¿²»ÏàµÈ£¬µ«ÊÇͬһÖÖÎïÖʵÄÖÊÁ¿ÓëÌå»ýµÄ±ÈÖµÊÇ______µÄ£¬Õâ¸ö±ÈÖµ·´Ó³ÁËÎïÖʹÌÓеÄÒ»ÖÖÌØÐÔ£¬ÔÚÎïÀíѧÖУ¬°ÑÕâ¸ö±ÈÖµ½Ð×öÕâÖÖÎïÖʵÄÃܶȣ®

½â£º£¨1£©ÔÚÌìƽµÄ±ê³ßÉÏ£¬1gÖ®¼äÓÐ5¸öС¸ñ£¬Ò»¸öС¸ñ´ú±íµÄÖÊÁ¿ÊÇ0.2g£¬¼´ÌìƽµÄ·Ö¶ÈֵΪ0.2g£»
±»²âÎïÌåµÄÖÊÁ¿Îª50g+20g+10g+5g+4g=89g£»
£¨2£©ÔÚÁ¿Í²ÉÏ£¬10cm3Ö®¼äÓÐ5¸öС¸ñ£¬Ò»¸öС¸ñ´ú±í2cm3£¬¼´Á¿Í²µÄ·Ö¶ÈֵΪ2cm3£¬ÒºÃæ×î°¼´¦Óë70cm3Ïàƽ£¬ËùÒÔÎïÌåµÄÌå»ýΪ70cm3-30cm3=10cm3£»
£¨3£©Í­1µÄÃܶȣº¦Ñ===8.9g/cm3£»
£¨4£©ÓɱíÖÐÊý¾Ý¿ÉÖª£¬²»Í¬Ìå»ýµÄͬһÖÖÎïÖʵÄÖÊÁ¿²»ÏàµÈ£¬µ«ÊÇͬһÖÖÎïÖʵÄÖÊÁ¿ÓëÌå»ýµÄ±ÈÖµÊÇÏàͬµÄ£¬Õâ¸ö±ÈÖµ·´Ó³ÁËÎïÖʹÌÓеÄÒ»ÖÖÌØÐÔ£¬ÔÚÎïÀíѧÖУ¬°ÑÕâ¸ö±ÈÖµ½Ð×öÕâÖÖÎïÖʵÄÃܶȣ®
¹Ê´ð°¸Îª£º£¨1£©89£»£¨2£©10£»£¨3£©8.9£»£¨4£©Ïàͬ£®
·ÖÎö£º£¨1£©Ê¹ÓÃÌìƽ²âÁ¿ÎïÌåÖÊÁ¿Ê±£¬Ê×ÏÈÒªÃ÷È·±ê³ßµÄ·Ö¶ÈÖµ£¬±»²âÎïÌåµÄÖÊÁ¿µÈÓÚíÀÂëµÄ×ÜÖÊÁ¿ÓëÓÎÂëËù¶Ô¿Ì¶ÈÖ®ºÍ£»
£¨2£©¶ÁÈ¡Á¿Í²ÖÐÒºÌåµÄÌå»ýʱ£¬Ê×ÏÈÒªÃ÷È·Á¿Í²µÄ·Ö¶ÈÖµ£¬¶ÁÊýʱÊÓÏßÓëÒºÃæ×î°¼´¦Ëù¶Ô¿ÌÏßÏàƽ£»
£¨3£©¸ù¾Ý¦Ñ=Çó³öÍ­1µÄÃܶȣ»
£¨4£©Í¬ÖÖÎïÖÊ£¬ÖÊÁ¿ÓëÌå»ýµÄ±ÈÖµÒ»¶¨£»²»Í¬ÎïÖÊ£¬ÖÊÁ¿ÓëÌå»ýµÄ±ÈÖµÒ»°ã²»Í¬£®ÔÚÎïÀíѧÖУ¬ÎÒÃÇÓÃÃܶÈÀ´±íʾÎïÖʵÄÕâÖÖÌØÐÔ£®
µãÆÀ£º±¾Ì⿼²éÁËÎïÖʵÄÒ»ÖÖÌØÐÔ--ÃܶȵÄ̽¾¿£¬Éè¼Æµ½ÁËÌìƽºÍÁ¿Í²µÄ¶ÁÊý¼°Ê¹Óᢸù¾ÝÊý¾ÝµÃ³ö½áÂÛµÄÄÜÁ¦µÈ£¬¶¼ÊÇ»ù´¡ÖªÊ¶£¬Ò²ÊÇÎÒÃÇÐèÒªÕÆÎÕµÄÄÚÈÝ£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
СÃ÷ÔÚ¡°Ì½¾¿ÎïÖʵÄÖÊÁ¿ÓëÌå»ýµÄ¹Øϵ¡±ÊµÑéÖУ®
¾«Ó¢¼Ò½ÌÍø
£¨1£©Óõ÷½ÚºÃµÄÌìƽ³ÆÒ»¸öÎïÌåAµÄÖÊÁ¿£¬µ±°ÑÎïÌå·Åµ½Ììƽ×óÅÌʱ£¬ÓÒÅÌÖеÄíÀÂëºÍÓÎÂëËù´¦µÄλÖÃÈçͼ¼×Ëùʾ£¬Ììƽƽºâ£¬ÇëÄ㽫Êý¾Ý¼Ç¼ÔÚ±íÒ»ÄÚ£®ÆäÊý¾ÝΪ
 
£®
£¨2£©½«¸ÃÎïÌåA·Åµ½Ô­Ê¢ÓÐ70cm3Ë®µÄÁ¿Í²Öкó£¬Á¿Í²ÖеÄË®Ãæ±ä»¯µ½ÈçͼÒÒËùʾλÖã¬Ç뽫ÎïÌåÌå»ý¼Ç¼ÔÚ±íÒ»ÄÚ£®ÆäÊý¾ÝΪ
 
£®
£¨3 £©°´ÕÕÉÏÃæÁ½²½Ö裬СÃ÷¼ÌÐø²âÁ¿ÁËÈÔÊôͬÖÖÎïÖʵÄÁíÍâÁ½ÎïÌåB£¬CµÄÖÊÁ¿ºÍÌå»ý£¬²¢½«Êý¾Ý¼Ç¼ÔÚ±íÒ»ÖУ¬ÇëÄã¸ù¾Ý±íÒ»ÖеÄÊý¾ÝÔÚͼ±ûµÄ×ø±êÖ½ÉÏÃèµã£¬×÷³öͼÏó¢ñ£®
±íÒ»£º
ÎïÌå A B C
ÖÊÁ¿/g 14.6 21.6
Ìå»ý/cm3 5.4 8.0
±í¶þ£º
ÎïÌå D E F
ÖÊÁ¿/g 9.0 20.3 15.5
Ìå»ý/cm3 5.0 7.5 8.6
СÃ÷ºóÀ´ÓÖ²âÁ¿ÁËÓɲ»Í¬ÎïÖʹ¹³ÉµÄÁíÍâ3¸ö²»Í¬ÎïÌåD£¬E£¬FµÄÖÊÁ¿ºÍÌå»ý£¬²¢½«Êý¾Ý¼Ç¼ÔÚ±í¶þÖУ¬ÇëÄã¸ù¾Ý±í¶þÖеÄÊý¾ÝÔÚͼ±ûµÄ×ø±êÖ½ÉÏÃèµã£¬×÷³öͼÏó¢ò£®Í¨¹ý¹Û²ì±È½Ï·ÖÎöͼÏó¢ñºÍ¢ò×ö³öÅжϣ¬ÎïÌåÖÊÁ¿ÓëÌå»ýµÄ¹ØϵÊÇ£ºÍ¬ÖÖÎïÖÊ
 
£¬²»Í¬ÎïÖÊ
 
£®
£¨4£©Ò»¸öÓëDÏàͬÎïÖÊ×é³ÉµÄʵÐÄÎïÌ壬Ìå»ýÊÇ10cm3£¬ËüµÄÖÊÁ¿ÊÇ
 
g£®

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø