ÌâÄ¿ÄÚÈÝ

9£®£¨1£©8.8g¶þÑõ»¯Ì¼Öк¬Ì¼ÔªËصÄÖÊÁ¿£»
£¨2£©2.2g¶þÑõ»¯Ì¼ºÍ1.4gÒ»Ñõ»¯Ì¼»ìºÏÆøÌåÖк¬ÓÐÌ¼ÔªËØµÄÖÊÁ¿£»
£¨3£©Ò»Ñõ»¯Ì¼ºÍ¶þÑõ»¯Ì¼µÄ»ìºÏÆøÌ壬¾­·ÖÎöº¬Ñõ64%£¬Çó»ìºÏÆøÌåÖÐÒ»Ñõ»¯Ì¼µÄº¬Á¿£»
£¨4£©ÑõÆøºÍ¶þÑõ»¯Ì¼µÄ»ìºÏÆøÌå6.0g£¬¾­·ÖÎöº¬ÑõÔªËØ80%£¬Çó»ìºÏÆøÌåÖÐÑõÆøµÄÖÊÁ¿£»
£¨5£©1.8g̼Íêȫת»¯ÎªÒ»Ñõ»¯Ì¼ºÍ¶þÑõ»¯Ì¼£¬Èô²úÉú¶þÑõ»¯Ì¼µÄÖÊÁ¿Îª4.4g£¬Ôòͬʱ²úÉúÒ»Ñõ»¯Ì¼¶àÉÙ¿Ë£¿

·ÖÎö Î§ÈÆ»¯Ñ§Ê½ºÍ¶ÔÓ¦ÔªËØµÄÖÊÁ¿·ÖÊý¿ªÕ¹¼ÆËã»òÕ߯äÄæÔËË㣬¹ý³ÌÖеÚÒ»ÒªÇå³þÇóËãµÄÔªËØµÄÖÖÀ࣬Æä´ÎÊÇҪ׼ȷÊÊÓÃÆäÏà¶ÔÔ­×ÓÖÊÁ¿£®

½â´ð ½â£º£¨1£©8.8g¶þÑõ»¯Ì¼Öк¬Ì¼ÔªËصÄÖÊÁ¿8.8g¡Á$\frac{12}{12+16¡Á2}$¡Á100%=2.4g£»
£¨2£©2.2g¶þÑõ»¯Ì¼ºÍ1.4gÒ»Ñõ»¯Ì¼»ìºÏÆøÌåÖк¬ÓÐÌ¼ÔªËØµÄÖÊÁ¿2.2g¡Á$\frac{12}{12+16¡Á2}$¡Á100%+1.4g¡Á$\frac{12}{12+16}$¡Á100%=1.2g£»
£¨3£©Ò»Ñõ»¯Ì¼ºÍ¶þÑõ»¯Ì¼µÄ»ìºÏÆøÌ壬¾­·ÖÎöº¬Ñõ64%£¬Éè»ìºÏÆøÌåÖÐÒ»Ñõ»¯Ì¼µÄÖÊÁ¿·ÖÊýx£¬Ôò¶þÑõ»¯Ì¼µÄÖÊÁ¿·ÖÊýΪ1-x
¸ù¾ÝÑõÔªËØÁÐʽ£¨1-x£©¡Á$\frac{16¡Á2}{12+16¡Á2}$¡Á100%+x¡Á$\frac{16}{12+16}$¡Á100%=64%
x¡Ö56%
£¨4£©ÑõÆøºÍ¶þÑõ»¯Ì¼µÄ»ìºÏÆøÌå6.0g£¬¾­·ÖÎöº¬ÑõÔªËØ80%£¬
Ôò¶ÔÓ¦µÄÌ¼ÔªËØµÄÖÊÁ¿Îª1-80%=20%£®
Ôò¶ÔÓ¦µÄ¶þÑõ»¯Ì¼µÄÖÊÁ¿=6.0g¡Á20%¡Â£¨$\frac{12}{12+16¡Á2}$¡Á100%£©=4.4g
»ìºÏÆøÌåÖÐÑõÆøµÄÖÊÁ¿6.0g-4.4g=1.6g£»
£¨5£©1.8g̼Íêȫת»¯ÎªÒ»Ñõ»¯Ì¼ºÍ¶þÑõ»¯Ì¼£¬Èô²úÉú¶þÑõ»¯Ì¼µÄÖÊÁ¿Îª4.4g£¬
Ôò¶þÑõ»¯Ì¼ÖÐÌ¼ÔªËØµÄÖÊÁ¿Îª4.4g¡Á$\frac{12}{12+16¡Á2}$¡Á100%=1.2g
Ôòת»¯ÎªÒ»Ñõ»¯Ì¼µÄÌ¼ÔªËØµÄÖÊÁ¿Îª1.8g-1.2g=0.6g
Ôòͬʱ²úÉúÒ»Ñõ»¯Ì¼µÄÖÊÁ¿Îª0.6g¡Â£¨$\frac{12}{12+16}$¡Á100%£©=1.4g£®
´ð£º£¨1£©8.8g¶þÑõ»¯Ì¼Öк¬Ì¼ÔªËصÄÖÊÁ¿2.4g£»
£¨2£©2.2g¶þÑõ»¯Ì¼ºÍ1.4gÒ»Ñõ»¯Ì¼»ìºÏÆøÌåÖк¬ÓÐÌ¼ÔªËØµÄÖÊÁ¿1.2g£»
£¨3£©Ò»Ñõ»¯Ì¼ºÍ¶þÑõ»¯Ì¼µÄ»ìºÏÆøÌ壬¾­·ÖÎöº¬Ñõ64%£¬Çó»ìºÏÆøÌåÖÐÒ»Ñõ»¯Ì¼µÄº¬Á¿56%£»
£¨4£©ÑõÆøºÍ¶þÑõ»¯Ì¼µÄ»ìºÏÆøÌå6.0g£¬¾­·ÖÎöº¬ÑõÔªËØ80%£¬Çó»ìºÏÆøÌåÖÐÑõÆøµÄÖÊÁ¿1.6g£»
£¨5£©1.8g̼Íêȫת»¯ÎªÒ»Ñõ»¯Ì¼ºÍ¶þÑõ»¯Ì¼£¬Èô²úÉú¶þÑõ»¯Ì¼µÄÖÊÁ¿Îª4.4g£¬Ôòͬʱ²úÉúÒ»Ñõ»¯Ì¼1.4g£®

µãÆÀ ¸ù¾Ý»ìºÏÎïÔªËØÇóËãʱһ¶¨Òª×¢ÒâÆä¶ÔÓ¦³É·ÖÊÇ·ñº¬ÓжÔÓ¦ÔªËØÔì³É¸ÉÈÅ£¬ÈçµÚÈýºÍµÚËÄÎÊÖУ¬µÚÈýÎÊÒ»Ñõ»¯Ì¼ºÍ¶þÑõ»¯Ì¼º¬Ì¼£¬µÚËÄÎÊÖÐÑõÆø²»º¬Ì¼£®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

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

¾«Ó¢¼Ò½ÌÍø