1£®Í¼1Êǹû¾ÆºÍ¹û´×ÖÆ×÷µÄ¼òÒ×·¢½Í×°Öã®Í¼2Êǹ̶¨»¯½Íĸ·¢½ÍÓëÓÎÀë½Íĸ·¢½ÍµÄ¶Ô±È½á¹û£¬¸ù¾Ýͼʾ»Ø´ðÏÂÁÐÎÊÌ⣺

£¨1£©ÆÏÌÑÖ­×°Èë·¢½ÍÆ¿Ç°Òª½«·¢½ÍÆ¿ÓÃ70%µÄ¾Æ¾«´¦Àí£¬Ä¿µÄÊǽøÐÐÏû¶¾£®ÆÏÌÑÖ­×°Èë·¢½Íƿʱ£¬ÒªÁôÓдóÔ¼1/3µÄ¿Õ¼ä£¬¼È¿ÉΪ½Íĸ¾ú´óÁ¿·±Ö³ÌṩÑõÆø£¬ÓÖ¿É·ÀÖ¹·¢½ÍÍúʢʱ·¢½ÍÒºÒç³ö£®
£¨2£©Í¼1×°ÖÃÖеijäÆø¿ÚÔھƾ«·¢½Í¹ý³ÌÖÐÒª¹Ø±Õ£¬·ñÔò¿ÉÄÜ·¢Éúʹ·¢½ÍÒº±äËáµÄ·´Ó¦£¬Ð´³ö¸Ã·´Ó¦µÄ·´Ó¦Ê½£ºC2H5OH+O2$\stackrel{ø}{¡ú}$CH3COOH+H2O+ÄÜÁ¿£®
£¨3£©´Óͼ2ÖпÉÒÔ¿´³ö£¬Á½Õß·¢½ÍËÙÂÊÏà½ü£¬µ«·¢½ÍÇ°Æڹ̶¨»¯·¢½Í±ÈÓÎÀë·¢½Í²úÉúµÄ¾Æ¾«Á¿ÉÙ£¬Ö÷ÒªÔ­ÒòÊǹ̶¨»¯½ÍĸÓë²»Äܳä·ÖÓëÓªÑøÒº½Ó´¥£¬ÇҾƾ«ÅųöµÄËٶȸüÂý£®
£¨4£©½Íĸϸ°û¹Ì¶¨»¯³É°ÜµÄ¹Ø¼ü²½ÖèÊÇÅäÖƺ£ÔåËáÄÆÈÜÒº£®Èç¹ûÐγɵÄÄý½ºÖé²»ÊÇÔ²ÐλòÍÖÔ²ÐΣ¬ËµÃ÷º£ÔåËáÄÆŨ¶ÈÆ«¸ß£®ÅäÖƹý³ÌÖÐʹÓÃCaCl2ÈÜÒºµÄ×÷ÓÃÊÇʹº£ÔåËáÄÆ£¨½ºÌ壩¾Û³Á£¬ÐγÉÄý½ºÖ飮

·ÖÎö ·ÖÎöͼ1£ºÍ¼1Êǹû¾ÆºÍ¹û´×µÄ·¢½Í×°ÖÃͼ£¬ÆäÖÐÅÅÁÏ¿ÚµÄ×÷ÓÃÊdzöÁÏ¡¢¼ì²â£»³äÆø¿ÚµÄ×÷ÓÃÊÇÔÚ¹û´×ÖÆ×÷ʱͨÈëÑõÆøµÄ£»ÅÅÆø¿×ÊÇÅÅÆø£¬ÆäÍäÍäÇúÇúµÄºÃ´¦ÊÇ·ÀÖ¹ÔÓ¾úºÍ¸¡³¾µÄÎÛȾ£®
·ÖÎöͼ2£º¸ÃÇúÏßÊDz»Í¬´æÔÚ״̬µÄ½Íĸ¾ú·¢½Í¹ý³ÌÖоƾ«µÄÌå»ý·ÖÊýËæʱ¼ä±ä»¯µÄÇúÏߣ¬¸ÃʵÑéµÄ×Ô±äÁ¿ÊǽÍĸ¾ú´æÔÚµÄ״̬£¨¹Ì¶¨»¯½Íĸ»¹ÊÇÓÎÀë½Íĸ£©ºÍ·¢½Íʱ¼ä£¬Òò±äÁ¿ÊǾƾ«µÄÌå»ý·ÖÊý£¬½áºÏÌâͼÇúÏß¼°¹Ì¶¨»¯Ã¸¼¼Êõ¼°Ó¦Óýâ´ð£®

½â´ð ½â£º£¨1£©ÆÏÌÑÖ­×°Èë·¢½ÍÆ¿Ç°Òª½«·¢½ÍÆ¿ÓÃ70%µÄ¾Æ¾«´¦Àí£¬Ä¿µÄÊǽøÐÐÏû¶¾£®ÆÏÌÑÖ­×°Èë·¢½Íƿʱ£¬ÒªÁôÓдóÔ¼$\frac{1}{3}$µÄ¿Õ¼ä£¬¼È¿ÉΪ½Íĸ¾ú´óÁ¿·±Ö³ÌṩÑõÆø£¬ÓÖ¿É·ÀÖ¹·¢½ÍÍúʢʱ·¢½ÍÒºÒç³ö£®
 £¨2£©¾Æ¾«·¢½ÍÊǽÍĸ¾ú½øÐÐÎÞÑõºôÎüµÄ¹ý³Ì£¬¹Êͼ1×°ÖÃÖеijäÆø¿ÚÔھƾ«·¢½Í¹ý³ÌÖÐÒª¹Ø±Õ£¬·ñÔò¿ÉÄÜ·¢Éúʹ·¢½ÍÒº±äËáµÄ·´Ó¦£¬¸Ã·´Ó¦µÄ·´Ó¦Ê½Îª£ºC2H5OH+O2$\stackrel{ø}{¡ú}$CH3COOH+H2O+ÄÜÁ¿£®
£¨3£©´Óͼ2ÖпÉÒÔ¿´³ö£¬Á½Õß·¢½ÍËÙÂÊÏà½ü£¬µ«·¢½ÍÇ°Æڹ̶¨»¯·¢½Í±ÈÓÎÀë·¢½Í²úÉúµÄ¾Æ¾«Á¿ÉÙ£¬Ö÷ÒªÔ­ÒòÊǹ̶¨»¯½ÍĸÓë²»Äܳä·ÖÓëÓªÑøÒº½Ó´¥£¬ÇҾƾ«ÅųöµÄËٶȸüÂý£®
£¨4£©½Íĸϸ°û¹Ì¶¨»¯³É°ÜµÄ¹Ø¼ü²½ÖèÊÇÅäÖƺ£ÔåËáÄÆÈÜÒº£®Èç¹ûÐγɵÄÄý½ºÖé²»ÊÇÔ²ÐλòÍÖÔ²ÐΣ¬ËµÃ÷º£ÔåËáÄÆŨ¶ÈÆ«¸ß£®ÅäÖƹý³ÌÖÐʹÓÃCaCl2ÈÜÒºµÄ×÷ÓÃÊÇʹº£ÔåËáÄÆ£¨½ºÌ壩¾Û³Á£¬ÐγÉÄý½ºÖ飮
¹Ê´ð°¸Îª£º
£¨1£©Ïû¶¾     ½Íĸ¾ú´óÁ¿·±Ö³ÌṩÑõÆø
 £¨2£©¾Æ¾«·¢½Í    C2H5OH+O2$\stackrel{ø}{¡ú}$CH3COOH+H2O+ÄÜÁ¿
£¨3£©¾Æ¾«ÅųöµÄËٶȸüÂý
£¨4£©º£ÔåËáÄÆŨ¶ÈÆ«¸ß       Ê¹º£ÔåËáÄÆ£¨½ºÌ壩¾Û³Á£¬ÐγÉÄý½ºÖé

µãÆÀ ±¾Ìâ½áºÏ¹û¾ÆºÍ¹û´×ʵÑé×°ÖÃͼºÍÇúÏßͼ£¬¿¼²é¹û¾ÆºÍ¹û´×µÄÖÆ×÷¡¢¹Ì¶¨»¯Ã¸¼¼Êõ¼°Ó¦ÓõÈ֪ʶҪµã£¬ÒâÔÚ¿¼²é¿¼ÉúµÄʶͼÄÜÁ¦ºÍÀí½âËùѧ֪ʶҪµã£¬°ÑÎÕ֪ʶ¼äÄÚÔÚÁªÏµ£¬ÐγÉ֪ʶÍøÂç½á¹¹µÄÄÜÁ¦£»ÄÜÔËÓÃËùѧ֪ʶ£¬×¼È·ÅжÏÎÊÌâµÄÄÜÁ¦£¬ÊôÓÚ¿¼¸Ùʶ¼ÇºÍÀí½â²ã´ÎµÄ¿¼²é£®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ

14£®Ä³Ñо¿Ð¡×é´ÓÍܵľ«³²ÖÐÌáÈ¡ÁËһЩϸ°û£¨ÎÞÍ»±ä·¢Éú£©£¬²â¶¨Ï¸°ûÖÐȾɫÌåÊýÄ¿£¬²¢¸ù¾ÝȾɫÌåÊýÄ¿½«ÕâЩϸ°û·ÖΪÈý×飬¸÷×éϸ°ûÊýÈçͼËùʾ£®ÏÂÁзÖÎö´íÎóµÄÊÇ£¨¡¡¡¡£©
A£®ÓÐÒ»²¿·ÖÒÒ×éϸ°û¿ÉÄÜÕýÔÚ½øÐÐDNA¸´ÖÆ
B£®±û×éϸ°û²»¿ÉÄÜ·¢Éú»ùÒòµÄÖØÐÂ×éºÏ
C£®ÒÒ×éϸ°ûµÄÔöÖ³·½Ê½²»Ö¹Ò»ÖÖ
D£®±û×éϸ°ûÖв»º¬ÓÐͬԴȾɫÌå

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ

15£®Èçͼ±íʾÒÅ´«Ñ§¡°ÖÐÐÄ·¨Ôò¡±µÄÄÚÈÝ£¬Í¼ÖТ١¢¢Ú¡¢¢Û¡¢¢Ü·Ö±ð±íʾÏà¹Ø¹ý³Ì£¬ÔÚÈËÌåÕý³£Ï¸°ûÖв»»á·¢ÉúµÄÊÇ£¨¡¡¡¡£©
A£®¢ÙB£®¢ÚC£®¢ÛD£®¢Ü

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£º½â´ðÌâ

9£®ÄÒÐÔÏËά»¯£¨CF£©ÊÇÃÀ¹ú°×ÈËÖг£¼ûµÄµ¥»ùÒòÒÅ´«²¡£¬Ã¿2500¸öÈËÖоÍÓÐÒ»¸ö»¼Õߣ®ÏÂͼÊǸò¡µÄ¼Òϵͼ£¨¸Ã²¡ÊܵÈλ»ùÒòA¡¢a¿ØÖÆ£©£¬Çë¾Ýͼ»Ø´ð£º

£¨1£©¸ÃÒÅ´«²¡Êܳ£È¾É«ÌåÉÏÒþÐÔ»ùÒò¿ØÖÆ£®
£¨2£©¢ñ2ºÍ¢ò1µÄ»ùÒòÐÍ·Ö±ðΪAa¡¢AA»òAa£®
£¨3£©¢ò4¡¢¢ò5ÔÙÉúÒ»¸ö»¼²¡Äк¢µÄ¸ÅÂÊÊÇ$\frac{1}{8}$£®
£¨4£©Èô¢ó1ÓëÒ»¸öÕý³£Å®×Ó»éÅ䣬ÉúÁËÒ»¸ö»¼²¡µÄÄк¢£®ÔÙÉúÒ»¸öÅ®º¢£¬±íÏÖÕý³£µÄ¸ÅÂÊΪ$\frac{3}{4}$£®
£¨5£©Èô¢ó3ÓëÒ»¸ö±íÏÖÕý³£µÄÄÐÐÔ½á»é£¬×ÓÅ®»¼ÄÒÐÔÏËά»¯µÄ¸ÅÂÊÊÇ$\frac{1}{153}$£¨Ó÷ÖÊý±íʾ£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£º¶àÑ¡Ìâ

16£®ÏÂÁйØÓÚÎïÖʵļø¶¨£¬¶Ô²ÉÓõÄÊÔ¼Á¡¢ÊµÑé²Ù×÷·½·¨¼°ÊµÑéÏÖÏóµÄÃèÊö£¬ÕýÈ·µÄÊÇ£¨¡¡¡¡£©
ABCD
ÎïÖÊÖ¬·¾DNAÆÏÌÑÌǵ°°×ÖÊ
ÊÔ¼ÁËÕµ¤¢ôȾҺ½¡ÄÇÂÌÈÜÒºì³ÁÖÊÔ¼ÁË«ËõëåÊÔ¼Á
ˮԡ¼ÓÈȲ»¼ÓÈȼÓÈȼÓÈȼÓÈÈ
¹Û²ìÏÔ΢¾µ¹Û²ìÖ±½Ó¹Û²ìÖ±½Ó¹Û²ìÖ±½Ó¹Û²ì
ÏÖÏóºìÉ«¿ÅÁ£ÈÜÒº±äÀ¶É«×©ºìÉ«³Áµí×ÏÉ«ÈÜÒº
A£®AB£®BC£®CD£®D

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ

6£®¹ûÓ¬Õý³£Ï¸°ûÖУ¬ÒÅ´«ÐÅÏ¢µÄÁ÷Ïò²»°üÀ¨£¨¡¡¡¡£©
A£®RNA¸´ÖÆB£®DNA¸´ÖÆC£®DNAת¼D£®·­Òë

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ

13£®1·Ö×ÓµÄÆÏÌÑÌǾ­¹ýÌǽͽ⣬¿ÉÒÔ£¨¡¡¡¡£©
A£®²úÉú´óÁ¿µÄÄÜÁ¿B£®²úÉúCO2ºÍH2OC£®²úÉú4·Ö×Ó[H]D£®²úÉú3·Ö×ÓATP

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º2016½ìºÓÄÏå§ÑôÓÍÌï½ÌÓýÖÐÐĸßÈýÉÏѧÆÚµÚÒ»´ÎÊÐͳ¿¼Ä£Ä⿼ÊÔÉúÎïÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

ÓÃ32p±ê¼ÇÁ˹ûÓ¬¾«Ô­Ï¸°ûDNA·Ö×ÓµÄË«Á´£¬ÔÙ½«ÕâЩϸ°ûÖÃÓÚÖ»º¬31pµÄÅàÑøÒºÖÐÅàÑø£¬·¢ÉúÁËÈçÏÂͼA¡úDºÍD¡úHµÄÁ½¸öϸ°û·ÖÁѹý³Ì¡£Ïà¹ØÐðÊö²»ÕýÈ·µÄÊÇ

A. BC¶Îϸ°ûÖв»Ò»¶¨ÓÐ2ÌõYȾɫÌå

B£®EF¶Îϸ°ûÖв»¿ÉÄÜÓÐ2ÌõYȾɫÌå

C£®EF¶Îϸ°ûÖк¬32pµÄȾɫÌåÒ»¶¨ÓÐ8Ìõ

D£®FG¶Îϸ°ûÖк¬32pµÄȾɫÌå¿ÉÄÜÓÐ8Ìõ

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º2015-2016ѧÄêɽ¶«Îä³ÇµÚ¶þÖÐѧ¸ßÈýÉÏѧÆÚµÚÒ»´ÎÔ¿¼ÉúÎïÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

¶ËÁ£Ã¸ÓÉRNAºÍµ°°×ÖÊ×é³É£¬¸ÃøÄܽáºÏµ½¶ËÁ£ÉÏ£¬ÒÔ×ÔÉíµÄRNAΪģ°åºÏ³É¶ËÁ£DNAµÄÒ»ÌõÁ´¡£ÏÂÁÐÐðÊöÕýÈ·µÄÊÇ

A.´ó³¦¸Ë¾úÄâºËµÄDNAÖк¬ÓжËÁ£

B.¶ËÁ£Ã¸Öеĵ°°×ÖÊΪRNA¾ÛºÏø

C.Õý³£ÈËϸ°ûµÄÿÌõȾɫÌåÁ½¶Ë¶¼º¬ÓжËÁ£DNA

D.Õý³£Ìåϸ°ûµÄ¶ËÁ£DNAËæϸ°û·ÖÁÑ´ÎÊýÔö¼Ó¶ø±ä³¤

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸