ÌâÄ¿ÄÚÈÝ
-
£¬-
£¬-
£¬-
ÕâËĸöÊý´ÓСµ½´óµÄÅÅÁÐ˳ÐòÊÇ£¨¡¡¡¡£©
| 1999 |
| 2000 |
| 1998 |
| 1999 |
| 998 |
| 999 |
| 999 |
| 1000 |
A¡¢-
| ||||||||
B¡¢-
| ||||||||
C¡¢-
| ||||||||
D¡¢-
|
·ÖÎö£º±¾ÌâÖи÷ÊýµÄÊýÖµ½Ï´ó£¬Èç¹ûÏÈͨ·ÖÔڱȽϴóСÔò»áÒýÆð·±ËöµÄ¼ÆË㣬¹Ê¿ÉÀûÓÃ
£¬ÔÙ¸ù¾Ý¸ºÊý±È½Ï´óСµÄÔÔò½øÐбȽϣ®
| b+1 |
| a+1 |
½â´ð£º½â£ºÉè
ÎªÕæ·ÖÊý£¬Ôòb-a£¼0£¬
¡à
-
=
-
=
=
£¼0£¬
¡à
£¼
£¬
ÓÚÊÇ
£¼
£¼
£¼
£¬
¡à-
£¼-
£¼-
£¼-
£®
¹ÊÑ¡A£®
| b |
| a |
¡à
| b |
| a |
| b+1 |
| a+1 |
| b(a+1) |
| a(a+1) |
| a(b+1) |
| a(a+1) |
| ab+b-ab-a |
| a(a+1) |
| b-a |
| a(a+1) |
¡à
| b |
| a |
| b+1 |
| a+1 |
ÓÚÊÇ
| 998 |
| 999 |
| 999 |
| 1000 |
| 1998 |
| 1999 |
| 1999 |
| 2000 |
¡à-
| 1999 |
| 2000 |
| 1998 |
| 1999 |
| 999 |
| 1000 |
| 998 |
| 999 |
¹ÊÑ¡A£®
µãÆÀ£º±¾Ì⿼²éµÄÊÇÓÐÀíÊýµÄ´óС±È½Ï£¬½â´ð´ËÌâµÄ¹Ø¼üÊÇÊìÖªÓÐÀíÊý±È½Ï´óСµÄ·½·¨£¬ÀûÓÃ
£¼
ÊǽâÌâµÄ¹Ø¼ü£®
| b |
| a |
| b+1 |
| a+1 |
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
ÒÑÖª£ºM=
-
£¬N=
-
£¬ÄÇôM+NµÄÖµ±Ø¶¨ÊÇ£¨¡¡¡¡£©
| 2000 |
| 2001 |
| 1999 |
| 2000 |
| 1999 |
| 2000 |
| 1998 |
| 1999 |
| A¡¢ÕýÊý | B¡¢Áã | C¡¢¸ºÊý | D¡¢²»ÄÜÈ·¶¨ |
Éèa=
£¬b=
£¬c=
£¬ÔòÏÂÁв»µÈ¹ØÏµÖÐÕýÈ·µÄÊÇ£¨¡¡¡¡£©
| 1998 |
| 1999 |
| 1999 |
| 2000 |
| 2000 |
| 2001 |
| A¡¢a£¼b£¼c |
| B¡¢a£¼c£¼b |
| C¡¢b£¼c£¼a |
| D¡¢c£¼b£¼a |