ÌâÄ¿ÄÚÈÝ
![¾«Ó¢¼Ò½ÌÍø](http://thumb.1010pic.com/pic3/upload/images/201402/2/87a34dca.png)
A¡¢µõÀºPµÄ¼ÓËÙ¶ÈΪg£¬ÎïÌåQµÄ¼ÓËÙ¶ÈΪg | B¡¢µõÀºPµÄ¼ÓËÙ¶ÈΪg£¬ÎïÌåQµÄ¼ÓËÙ¶ÈΪ0 | C¡¢µõÀºPµÄ¼ÓËÙ¶ÈΪ2g£¬ÎïÌåQµÄ¼ÓËÙ¶ÈΪ0 | D¡¢µõÀºPµÄ¼ÓËÙ¶ÈΪ0£¬ÎïÌåQµÄ¼ÓËÙ¶ÈΪ2g |
·ÖÎö£º¼ô¶ÏϸÏßÇ°¶ÔPºÍQÕûÌå½øÐÐÊÜÁ¦·ÖÎö£¬¸ù¾ÝƽºâÌõ¼þÇó³öϸÏߵĵ¯Á¦£¬¶Ï¿ªÏ¸Ïߺó£¬ÔÙ·Ö±ð¶ÔP¡¢QÊÜÁ¦·ÖÎö£¬Çó½â³öºÏÁ¦²¢ÔËÓÃÅ£¶ÙµÚ¶þ¶¨ÂÉÇó½â¼ÓËٶȣ®
½â´ð£º½â£º¼ô¶ÏϸÏßÇ°£¬¶ÔPQÕûÌåÊÜÁ¦·ÖÎö£¬Êܵ½×ÜÖØÁ¦ºÍϸÏßµÄÀÁ¦¶øƽºâ£¬¹ÊT=2mg£»ÔÙ¶ÔÎïÌåQÊÜÁ¦·ÖÎö£¬Êܵ½ÖØÁ¦¡¢µ¯»ÉµÄÀÁ¦£»
¼ô¶ÏϸÏߺó£¬ÖØÁ¦ºÍµ¯»ÉµÄµ¯Á¦²»±ä£¬Ï¸ÏßµÄÀÁ¦¼õΪÁ㣬¹ÊÎïÌåPÊܵ½µÄÁ¦µÄºÏÁ¦µÈÓÚ2mg£¬ÏòÏ£¬ËùÒÔap=2g£¬
ÎïÌåQÊܵ½µÄÁ¦²»±ä£¬ºÏÁ¦ÎªÁ㣬ËùÒÔaQ=0£»
¹ÊÑ¡£ºC£®
¼ô¶ÏϸÏߺó£¬ÖØÁ¦ºÍµ¯»ÉµÄµ¯Á¦²»±ä£¬Ï¸ÏßµÄÀÁ¦¼õΪÁ㣬¹ÊÎïÌåPÊܵ½µÄÁ¦µÄºÏÁ¦µÈÓÚ2mg£¬ÏòÏ£¬ËùÒÔap=2g£¬
ÎïÌåQÊܵ½µÄÁ¦²»±ä£¬ºÏÁ¦ÎªÁ㣬ËùÒÔaQ=0£»
¹ÊÑ¡£ºC£®
µãÆÀ£º±¾ÌâÊÇÁ¦Ñ§ÖеÄ˲ʱÎÊÌ⣬¹Ø¼üÊÇÏȸù¾ÝƽºâÌõ¼þÇó³ö¸÷¸öÁ¦£¬È»ºó¸ù¾ÝÅ£¶ÙµÚ¶þ¶¨ÂÉÁÐʽÇó½â¼ÓËٶȣ»Í¬Ê±Òª×¢ÒâÇᵯ»ÉµÄµ¯Á¦ÓëÐбäÁ¿³ÉÕý±È£¬À´²»¼°Í»±ä£¬¶øϸÏߵĵ¯Á¦ÊÇÓÐ΢СÐαä²úÉúµÄ£¬¹Ê¿ÉÒÔÍ»±ä£®
![](http://thumb2018.1010pic.com/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿