±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 1429  |  »Ø¸´: 5
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

kellyfilm

Í­³æ (ÕýʽдÊÖ)

[½»Á÷] ¡¾ÇóÖú¡¿Îü¹â¶È¿ÉÒÔ¼ÓºÍÂð£¿

¼ÙÉèÁ½¸öÑùÆ·AºÍB£¬¶øÕâ²»»á·¢Éú·´Ó¦¡£
A :ÓÐ5ml£¬300nm²¨³¤Ï²ⶨODÊÇ0.2¡£
B£ºÓÐ5ml£¬300nm²¨³¤Ï²ⶨODʱ0.4¡£
½«Á©ÈÜÒº»ìºÏΪ10mlµÄAB¹²»ìÈÜÒº,ÄÇô»ìºÏÈÜÒº×ÜODÊDz»ÊÇ¿ÉÒÔÕâÑù¼ÆËã???

Ï൱ÓÚAºÍB¶¼Ï¡ÊÍÁË2±¶¡£×ܵÄOD=0.2/2+0.4/2=0.3

Îü¹âÖµ¿ÉÒÔÕâÑù¼ÓÂð£¿
»Ø¸´´ËÂ¥
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

1985ydcg

Òø³æ (³õÈëÎÄ̳)

Îü¹â¶È¾ßÓмӺÍÐÔ£¬
ÎÒ¾ÍÊÇÎÒ~
3Â¥2010-01-10 20:55:16
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 6 ¸ö»Ø´ð

sion2008

ľ³æ (Ö°Òµ×÷¼Ò)

´¬³¤

¡ï ¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
happy169(½ð±Ò+1,VIP+0):лл²ÎÓ룬»¶Ó­³£À´·ÖÎö°æ 1-10 10:26
Îü¹â¶È¾ßÓмӺÍÐÔ£¬ÔÚijһ²¨³¤ÏÂ×ÜÎü¹â¶ÈµÈÓÚ¸÷¸ö×é·ÖÎü¹â¶ÈµÄ×ܺ͡£
ÎҵĹ«ÖÚºÅÏ£ÍûÊ÷£ºtreeofhope
2Â¥2010-01-09 22:50:13
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

staunchstone

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
¸ù¾ÝÄǸöÀʲ®±È¶û¶¨ÂÉÊÇ¿ÉÒԼӺϵÄ
4Â¥2010-01-10 21:42:54
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yckaolin

ľ³æ (ÖøÃûдÊÖ)

¡ï
happy169(½ð±Ò+1,VIP+0):лл²ÎÓ룬»¶Ó­³£À´·ÖÎö°æ 1-11 15:18
²»ÄÜÕâÑù¼ÓºÍ£¬Ó¦¸Ã¸ù¾Ý¸÷×ÔµÄÎü¹â¶ÈÍÆËã³öŨ¶È£¬ÔټӺ͡£ÒòΪÄãÿһ¸öÎü¹â¶È¶¼¡¡º¬Óпհ×Öµ£¬·ñÔò·Å´óÁ˿հ×ÖµµÄÓ°Ïì
5Â¥2010-01-11 11:39:36
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 277Çóµ÷¼Á +3 ¿¼Ñе÷¼Álxh 2026-04-05 3/150 2026-04-05 15:12 by ffffjjjj
[¿¼ÑÐ] 320·ÖÈ˹¤ÖÇÄܵ÷¼Á +7 Õñ¡ªTZ 2026-04-03 7/350 2026-04-05 00:42 by chongya
[¿¼ÑÐ] 0854Çóµ÷¼Á +4 assdll 2026-04-03 4/200 2026-04-04 22:17 by hemengdong
[¿¼ÑÐ] Ò»Ö¾Ô¸211£¬»¯Ñ§Ñ§Ë¶£¬310·Ö£¬±¾¿ÆÖصãË«·Ç£¬Çóµ÷¼Á +11 ŬÁ¦·Ü¶·112 2026-04-04 11/550 2026-04-04 20:51 by À¶ÔÆË¼Óê
[¿¼ÑÐ] »¯Ñ§308·Öµ÷¼Á +23 ÄãºÃÃ÷ÌìÄãºÃ 2026-03-30 24/1200 2026-04-04 18:29 by macy2011
[¿¼ÑÐ] Ò»Ö¾Ô¸085404£¬×Ü·Ö291£¬Ëļ¶Òѹý£¬Çóµ÷¼Á +5 °¢¿¡°¢¿¡°¢¿¡ 2026-04-04 7/350 2026-04-04 13:23 by Á«²Ë¾ÍÊÇź°É
[¿¼ÑÐ] 327Çóµ÷¼Á +9 С¿¨²»¿¨. 2026-03-29 9/450 2026-04-03 19:48 by °ÙÁéͯ888
[¿¼ÑÐ] ÊýÒ»Ó¢Ò»285Çóµ÷¼Á +7 AZMK 2026-04-03 9/450 2026-04-03 13:03 by ms629
[¿¼ÑÐ] 313Çóµ÷¼Á +3 ¡«Î¢Î¢Á¹¡« 2026-04-03 3/150 2026-04-03 11:25 by à£à£à£0119
[¿¼ÑÐ] һ־Ըɽ¶«´óѧ»¯Ñ§Ó뻯¹¤Ñ§Ôº²ÄÁÏÓ뻯¹¤×¨Ë¶£¬360·ÖÇóµ÷¼Á +4 ²»Ô¸Í¸Â¶ÐÕÃûµÄË 2026-04-02 4/200 2026-04-03 09:29 by ÒÅÍüÏûʧµÄž™
[¿¼ÑÐ] 321Çóµ÷¼Á Ò»Ö¾Ô¸ Õã½­¹¤Òµ´óѧÉúÎïÒ½Ò© +5 ºÙºÙHC 2026-04-01 6/300 2026-04-02 15:23 by sophie2180
[¿¼ÑÐ] 07ÉúÎïѧÇóµ÷¼Á һ־Ըͬ¼Ã´óѧ359·Ö +3 LAMC. 2026-03-30 3/150 2026-04-02 10:26 by 18828373951
[¿¼ÑÐ] Ò»Ö¾Ô¸±±¾©¿Æ¼¼£¬085601×Ü·Ö305Çóµ÷¼Á +9 °ëÉú¹Ï£¡ 2026-04-01 11/550 2026-04-02 08:28 by Wang200018
[¿¼ÑÐ] 307·ÖÇóµ÷¼Á +14 (o~o) 2026-03-31 15/750 2026-04-01 20:43 by longlotian
[¿¼ÑÐ] 379Çóµ÷¼Á +3 ?¿à¹Ï²»¿à 2026-04-01 3/150 2026-04-01 20:09 by ÄºÔÆÇ庮
[¿¼ÑÐ] ÉúÎïÓëÒ½Ò©¿¼Ñе÷¼Á +5 Ìúº©º©123425 2026-03-31 5/250 2026-04-01 18:01 by syh9288
[¿¼ÑÐ] Ò»Ö¾Ô¸±±½»²ÄÁϹ¤³Ì×Ü·Ö358 +5 cs0106 2026-04-01 7/350 2026-04-01 11:45 by wangjy2002
[¿¼ÑÐ] Çóµ÷¼Á ÉúÎïѧ 377·Ö +6 zzll03 2026-03-31 6/300 2026-03-31 17:33 by ÌÆãå¶ù
[¿¼ÑÐ] 080500-315·Ö¸´ÊÔµ÷¼Á +9 Éϰ¶3821 2026-03-31 9/450 2026-03-31 17:29 by ÌÆãå¶ù
[¿¼ÑÐ] 370Çóµ÷¼Á +3 080700µ÷¼Á 2026-03-30 3/150 2026-03-31 01:09 by A_Zhe
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û