¾«Ó¢¼Ò½ÌÍøÈçͼÊǵ¹úÎïÀíѧ¼ÒÊ·Ìض÷Éè¼ÆµÄ×îÔç²â¶¨ÆøÌå·Ö×ÓËÙÂʵÄʾÒâͼ£®M¡¢NÊÇÁ½¸ö¹²ÖáԲͲµÄºá½ØÃ棬ÍâͲNµÄ°ë¾¶ÎªR£¬ÄÚͲµÄ°ë¾¶±ÈRСµÃ¶à£¬¿ÉºöÂÔ²»¼Æ£®Í²µÄÁ½¶Ë·â±Õ£¬Á½Í²Ö®¼ä³é³ÉÕæ¿Õ£¬Á½Í²ÒÔÏàͬ½ÇËٶȦØÈÆÆäÖÐÐÄÖáÏßÔÈËÙת¶¯£®MͲ¿ªÓÐÓëתÖáƽÐеÄÏÁ·ìS£¬ÇÒ²»¶ÏÑذ뾶·½ÏòÏòÍâÉä³öËÙÂÊ·Ö±ðΪv1ºÍv2µÄ·Ö×Ó£¬·Ö×Óµ½´ïNͲºó±»Îü¸½£¬Èç¹ûR¡¢v1¡¢v2±£³Ö²»±ä£¬¦ØȡijºÏÊÊÖµ£¬ÔòÒÔϽáÂÛÖÐÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A¡¢µ±|
R
v1
-
R
v2
|¡Ùn
2¦Ð
¦Ø
ʱ£¨nΪÕýÕûÊý£©£¬·Ö×ÓÂäÔÚ²»Í¬µÄÏÁÌõÉÏ
B¡¢µ±
R
v1
+
R
v1
=n
2¦Ð
¦Ø
ʱ£¨nΪÕýÕûÊý£©£¬·Ö×ÓÂäÔÚͬһ¸öÏÁÌõÉÏ
C¡¢Ö»ÒªÊ±¼ä×ã¹»³¤£¬NͲÉϵ½´¦¶¼ÂäÓзÖ×Ó
D¡¢·Ö×Ó²»¿ÉÄÜÂäÔÚNͲÉÏijÁ½´¦ÇÒÓëSƽÐеÄÏÁÌõÉÏ
·ÖÎö£ºÎ¢Á£´ÓÕ­·ìÉä³öºóÑØͲµÄ°ë¾¶·½Ïò×öÔÈËÙÖ±ÏßÔ˶¯£¬Í¬Ê±NͲÒÔ½ÇËٶȦØÈÆÖáÏßת¶¯£¬µ±Î¢Á£µ½´ïNͲʱ£¬¶þÕßÔ˶¯Ê±¼äÏàµÈ£¬Í¨¹ýʱ¼äÏàµÈ¹ØϵÇó½â×÷³öÅжϣ®
½â´ð£º½â£ºÎ¢Á£´ÓMµ½NÔ˶¯Ê±¼ät=
R
v
£¬¶ÔÓ¦NͲת¹ý½Ç¶È¦È=¦Øt=
¦ØR
v
£¬¼´Èç¹ûÒÔv1Éä³öʱ£¬×ª¹ý½Ç¶È£º¦È1=¦Øt=
¦ØR
v1
£¬Èç¹ûÒÔv2Éä³öʱ£¬×ª¹ý½Ç¶È£º¦È2=¦Øt=
¦ØR
v2
£¬Ö»Òª¦È1¡¢¦È2²»ÊÇÏà²î2¦ÐµÄÕûÊý±¶£¬¼´µ±|
R
v1
-
R
v2
|¡Ùn
2¦Ð
¦Ø
ʱ£¨nΪÕýÕûÊý£©£¬·Ö×ÓÂäÔÚ²»Í¬µÄÁ½´¦ÓëSƽÐеÄÏÁÌõÉÏ£¬¹ÊAÕýÈ·£¬D´íÎó£»
ÈôÏà²î2¦ÐµÄÕûÊý±¶£¬ÔòÂäÔÚÒ»´¦£¬¼´µ±
R
v1
-
R
v2
=n
2¦Ð
¦Ø
ʱ£¨nΪÕýÕûÊý£©£¬·Ö×ÓÂäÔÚͬһ¸öÏÁÌõÉÏ£®¹ÊB´íÎó£»
Èô΢Á£Ô˶¯Ê±¼äΪNͲת¶¯ÖÜÆÚµÄÕûÊý±¶£¬Î¢Á£Ö»Äܵ½´ïNͲÉϹ̶¨µÄλÖã¬Òò´Ë£¬¹ÊC´íÎó£®
¹ÊÑ¡£ºA
µãÆÀ£º½â´ð´ËÌâÒ»¶¨Ã÷ȷ΢Á£Ô˶¯µÄʱ¼äÓëNͲת¶¯µÄʱ¼äÏàµÈ£¬ÔÚ´Ë»ù´¡ÉÏ·Ö±ðÒÔv1¡¢v2Éä³öʱÀ´ÌÖÂÛ΢Á£Âäµ½NͲÉϵĿÉÄÜλÖã®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º»Æ¸ÔÊв¿·ÖÖصãÖÐѧ2007Äê¸ß¿¼³å´ÌÎïÀíÄ£ÄâÊÔÌâ(Ê®) ÌâÐÍ£º013

ÈçͼÊǵ¹úÎïÀíѧ¼ÒÊ·Ìض÷Éè¼ÆµÄ×îÔç²â¶¨ÆøÌå·Ö×ÓËÙÂʵÄʾÒâͼ£ºM¡¢NÊÇÁ½¸ö¹²ÖáԲͲ£¬ÍâͲ°ë¾¶ÎªR£¬ÄÚͲ°ë¾¶¿ÉºöÂÔ£¬Í²µÄÁ½¶Ë·â±Õ£¬Á½Í²Ö®¼ä³é³ÉÕæ¿Õ£¬Á½Í²ÒÔÏàͬ½ÇËÙ¶ÈWÈÆOÔÈËÙת¶¯£¬MͲ¿ªÓÐÓëתÖáƽÐеÄÏÁ·ìS£¬ÇÒ²»¶ÏÑذ뾶·½ÏòÏòÍâÉä³öËÙÂÊΪv1ºÍv2µÄ·Ö×Ó£¬·Ö×Óµ½´ïNͲºó±»Îü¸½£¬Èç¹ûR¡¢v1¡¢v2±£³Ö²»±ä£¬WÈ¡Ò»ºÏÊÊÖµ£¬Ôò

[¡¡¡¡]

A£®µ±Ê±£¬·Ö×ÓÂäÔÚͬһÏÁÌõÉÏ

B£®µ±¡Ùʱ£¬·Ö×ÓÂäÔÚ²»Í¬ÏÁÌõÉÏ

C£®Ö»ÒªÊ±¼ä×ã¹»³¤£¬NͲÉϵ½´¦¶¼ÂäÓзÖ×Ó

D£®·Ö×Ó²»¿ÉÄÜÂäÔÚNͲÉÏijÁ½´¦ÇÒÓëSƽÐеÄÏÁÌõÉÏ

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼÊǵ¹úÎïÀíѧ¼ÒÊ·Ìض÷Éè¼ÆµÄ×îÔç²â¶¨ÆøÌå·Ö×ÓËÙÂʵÄʾÒâͼ£ºM¡¢NÊÇÁ½¸ö¹²ÖáԲͲ£¬ÍâͲ°ë¾¶ÎªR£¬ÄÚͲ°ë¾¶ºÜС¿ÉºöÂÔ£¬Í²µÄÁ½¶Ë·â±Õ£¬Á½Í²Ö®¼ä³é³ÉÕæ¿Õ£¬Á½Í²ÒÔÏàͬ½ÇËÙ¶ÈÈÆOÔÈËÙת¶¯£¬MͲ¿ªÓÐÓëתÖáƽÐеÄÏÁ·ìS£¬ÇÒ²»¶ÏÑذ뾶·½ÏòÏòÍâÉä³öËÙÂÊΪv1ºÍv2µÄ·Ö×Ó£¬·Ö×Ó´ïµ½NͲºó±»Îü¸½¡£Èç¹ûR¡¢v1¡¢v2±£³Ö²»±ä£¬È¡Ò»ºÏÊÊÖµ£¬Ôò

       A£®µ±Ê±£¬·Ö×ÓÂäÔÚͬһÏÁÌõÉÏ£¨nÈ¡ÕýÕûÊý£©

       B£®µ±Ê±£¬·Ö×ÓÂäÔÚͬһÏÁÌõÉÏ

       C£®Ö»ÒªÊ±¼ä×ã¹»³¤£¬NͲÉϵ½´¦¶¼ÂäÓзÖ×Ó

       D£®·Ö×Ó²»¿ÉÄÜÂäÔÚNͲÉÏijÁ½´¦ÇÒÓëSƽÐеÄÏÁÌõÉÏ

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸