·¢²¼Ê±¼ä : ÐÇÆÚÁù ÎÄÕ´óѧÆÕͨÎïÀíÏ°ÌâÏê½â¸üÐÂÍê±Ï¿ªÊ¼ÔĶÁ
ÆÕͨÎïÀíÊÔÌâ¿â
(A) ±äС£» (B) ±ä´ó£» (C) ²»±ä£» (D) ÎÞ·¨È·¶¨¡£
101£® ²âÁ¿µ¥É«¹âµÄ²¨³¤Ê±£¬ÏÂÁз½·¨ÖÐÄÄÒ»ÖÖ·½·¨×îΪ׼ȷ£¿ ( )
(A) Ë«·ì¸ÉÉ棻 (B) Å£¶Ù»·£» (C) µ¥·ìÑÜÉ䣻 (D) ¹âÕ¤ÑÜÉä¡£
102£® ×ÔÈ»¹â´Ó¿ÕÆøÁ¬ÐøÉäÈë½éÖÊAºÍB¡£¹âµÄÈëÉä½ÇΪ60¡ãʱ£¬µÃµ½µÄ·´Éä¹âRAºÍRB¶¼ÊÇÍêÈ«Æ«Õñ¹â£¨Õñ¶¯·½Ïò´¹Ö±ÈëÉäÃ棩£¬ÓÉ´Ë¿ÉÖª£¬½éÖÊAºÍBµÄÕÛÉäÂÊÖ®±ÈΪ
( )
(A) 13£» (B) 3£» (C) 12£» (D) 21¡£
103£® Ò»Êø¹âǿΪI0µÄ×ÔÈ»¹â£¬Ïà¼Ìͨ¹ýÈý¸öÆ«ÕñƬP1¡¢P2¡¢P3ºó³öÉä¹âǿΪI0 /8¡£ÒÑÖªP1ºÍP3µÄÆ«Õñ
»¯·½ÏòÏ໥´¹Ö±¡£ÈôÒÔÈëÉä¹âÏßΪÖáÐýתP2£¬ÒªÊ¹³öÉä¹âǿΪÁ㣬P2ÖÁÉÙӦת¹ýµÄ½Ç¶ÈÊÇ ( )
(A) 30¡ã£» (B) 45¡ã£» (C) 60¡ã£» (D) 90¡ã¡£
104£® Á½Æ«ÕñƬ¶ÑµþÔÚÒ»Æð£¬Ò»Êø×ÔÈ»¹â´¹Ö±ÈëÉäʱûÓйâÏßͨ¹ý¡£µ±ÆäÖÐÒ»ÕñƫƬÂýÂýת¶¯180¡ãʱ͸Éä¹âÇ¿¶È·¢ÉúµÄ±ä»¯Îª ( )
(A) ¹âÇ¿µ¥µ÷Ôö¼Ó£» (B) ¹âÇ¿ÏÈÔö¼Ó£¬È»ºó¼õС£¬ÔÙÔö¼Ó£¬ÔÙ¼õСÖÁÁã (C) ¹âÇ¿ÏÈÔö¼Ó£¬ºóÓÖ¼õСÖÁÁ㣻 (D) ¹âÇ¿ÏÈÔö¼Ó£¬ºó¼õС£¬ÔÙÔö¼Ó¡£
105£® Ò»Êø¹âǿΪI0µÄ×ÔÈ»¹â´¹Ö±´©¹ýÁ½¸öÆ«ÕñƬ£¬ÇÒÁ½Æ«ÕñƬµÄÕñÆ«»¯·½Ïò³É45¡ã½Ç£¬Èô²»¿¼ÂÇÆ«ÕñƬµÄ·´ÉäºÍÎüÊÕ£¬Ôò´©¹ýÁ½¸öÆ«ÕñƬºóµÄ¹âÇ¿IΪ ( )
(A) 2I04£» (B) I04£» (C) I02£» (D) 2I02¡£
106£® Ò»Êø×ÔÈ»¹â×Ô¿ÕÆøÉäÏòÒ»¿éƽ°å²£Á§£¨Èçͼ£©£¬ÈëÉä½ÇµÈÓÚ²¼Èå˹ÌؽÇi0£¬ÔòÔÚ½çÃæ2µÄ·´Éä¹â ( )
i0 (A) ¹âǿΪÁ㣻
£± (B) ÊÇÍêÈ«Æ«Õñ¹â£¬ÇÒ¹âʸÁ¿µÄÕñ¶¯·½Ïò´¹Ö±ÓÚÈëÉäÃ棻 (C) ÊÇÍêÈ«Æ«Õñ¹â£¬ÇÒ¹âʸÁ¿µÄÕñ¶¯·½ÏòƽÐÐÓÚÈëÉäÃ棻 £² (D) ÊDz¿·ÖÆ«Õñ¹â¡£
107£® ×ÔÈ»¹âÒÔ60¡ãµÄÈëÉä½ÇÕÕÉ䵽ijһ͸Ã÷½éÖʱíÃæʱ£¬·´Éä¹âΪÏßÆ«Õñ¹â£¬Ôò( )
(A) ÕÛÉä¹âΪÏßÆ«Õñ¹â£¬ÕÛÉä½ÇΪ30¡ã£» (B) ÕÛÉä¹âΪ²¿·ÖÆ«Õñ¹â£¬ÕÛÉä½ÇΪ30¡ã£» (C) ÕÛÉä¹âΪÏßÆ«Õñ¹â£¬ÕÛÉä½Ç²»ÄÜÈ·¶¨£» (D) ÕÛÉä¹âΪ²¿·ÖÆ«Õñ¹â£¬ÕÛÉä½Ç²»ÄÜÈ·¶¨¡£
108£® ÈÝÆ÷Öд¢ÓÐÒ»¶¨Á¿µÄ´¦ÓÚƽºâ״̬µÄÀíÏëÆøÌ壬ζÈΪT£¬·Ö×ÓÖÊÁ¿Îªm£¬Ôò·Ö×ÓËÙ¶ÈÔÚx·½ÏòµÄ·ÖÁ¿Æ½¾ùֵΪ£º£¨¸ù¾ÝÀíÏëÆøÌå·Ö×ÓÄ£ÐͺÍͳ¼Æ¼ÙÉèÌÖÂÛ£© ( )
£¨A£©Vx=
18kT8kT£» £¨B£©Vx=£»
3?m3?m3kT£» £¨D£©Vx=0¡£ 2m£¨C£©Vx=
109£® ÈôÀíÏëÆøÌåµÄÌå»ýΪV£¬Ñ¹Ç¿ÎªP£¬Î¶ÈΪT£¬Ò»¸ö·Ö×ÓµÄÖÊÁ¿Îªm£¬kΪ²£¶ú×ÈÂü³£Á¿£¬RΪĦ¶ûÆøÌå³£Á¿£¬Ôò¸ÃÀíÏëÆøÌåµÄ·Ö×ÓÊýΪ £¨ £©
£¨A£©PV/m£» £¨B£©PV/(kT)£» £¨C£©PV/(RT)£» £¨D£©PV/(mT)¡£ 110£®¸ù¾ÝÆøÌ嶯ÀíÂÛ£¬µ¥Ô×ÓÀíÏëÆøÌåµÄζÈÕý±ÈÓÚ £¨ £©
£¨A£©ÆøÌåµÄÌå»ý£»
17
ÆÕͨÎïÀíÊÔÌâ¿â
£¨B£©ÆøÌå·Ö×ÓµÄƽ¾ù×ÔÓɳ̣» £¨C£©ÆøÌå·Ö×ÓµÄƽ¾ù¶¯Á¿£» £¨D£©ÆøÌå·Ö×ÓµÄƽ¾ùƽ¶¯¶¯ÄÜ¡£
111£®ÓÐÁ½¸öÈÝÆ÷£¬Ò»¸öÊ¢ÇâÆø£¬ÁíÒ»¸öÊ¢ÑõÆø£¬Èç¹ûÁ½ÖÖÆøÌå·Ö×ӵķ½¾ù¸ùËÙÂÊÏàµÈ£¬ÄÇôÓÉ´Ë¿ÉÒԵóöÏÂÁнáÂÛ£¬ÕýÈ·µÄÊÇ £¨ £©
£¨A£©ÑõÆøµÄζȱÈÇâÆøµÄ¸ß£» £¨B£©ÇâÆøµÄζȱÈÑõÆøµÄ¸ß£» £¨C£©Á½ÖÖÆøÌåµÄζÈÏàͬ£» £¨D£©Á½ÖÖÆøÌåµÄѹǿÏàͬ¡£
112£®Èç¹ûÔÚÒ»¹Ì¶¨ÈÝÆ÷ÄÚ£¬ÀíÏëÆøÌå·Ö×ÓËÙÂʶ¼Ìá¸ßΪÔÀ´µÄ¶þ±¶£¬ÄÇô £¨ £©
£¨A£©Î¶ȺÍѹǿ¶¼Éý¸ßΪÔÀ´µÄ¶þ±¶£»
£¨B£©Î¶ÈÉý¸ßΪÔÀ´µÄ¶þ±¶£¬Ñ¹Ç¿Éý¸ßΪÔÀ´µÄËı¶£» £¨C£©Î¶ÈÉý¸ßΪÔÀ´µÄËı¶£¬Ñ¹Ç¿Éý¸ßΪÔÀ´µÄ¶þ±¶£» £¨D£©Î¶ÈÓëѹǿ¶¼Éý¸ßΪÔÀ´µÄËı¶¡£ 113£® ÔÚÒ»¶¨ËÙÂÊv¸½½üÂó¿Ë˹ΤËÙÂÊ·Ö²¼º¯Êýf(v)µÄÎïÀíÒâÒåÊÇ£ºÒ»¶¨Á¿µÄÆøÌåÔÚ¸ø¶¨Î¶ÈÏ´¦ÓÚƽºâ̬ʱµÄ £¨ £©
£¨A£©ËÙÂÊΪvµÄ·Ö×ÓÊý£» £¨B£©·Ö×ÓÊýËæËÙÂÊvµÄ±ä»¯£»
£¨C£©ËÙÂÊΪvµÄ·Ö×ÓÊýÕ¼×Ü·Ö×ÓÊýµÄ°Ù·Ö±È£»
£¨D£©ËÙÂÊÔÚv¸½½üµ¥Î»ËÙÂÊÇø¼äÄڵķÖ×ÓÊýÕ¼×Ü·Ö×ÓÊýµÄ°Ù·Ö±È¡£
114£® Èç¹ûÇâÆøºÍº¤ÆøµÄζÈÏàͬ£¬Ä¦¶ûÊýÒ²Ïàͬ£¬Ôò £¨ £©
£¨A£©ÕâÁ½ÖÖÆøÌåµÄƽ¾ù¶¯ÄÜÏàͬ£» £¨B£©ÕâÁ½ÖÖÆøÌåµÄƽ¾ùƽ¶¯¶¯ÄÜÏàͬ£» £¨C£©ÕâÁ½ÖÖÆøÌåµÄÄÚÄÜÏàµÈ£» £¨D£©ÕâÁ½ÖÖÆøÌåµÄÊÆÄÜÏàµÈ¡£
115£® Ôں㶨²»±äµÄѹǿÏ£¬ÀíÏëÆøÌå·Ö×ÓµÄƽ¾ùÅöײ´ÎÊýzÓëζÈTµÄ¹ØϵΪ ( )
£¨A£©ÓëTÎ޹أ» £¨B£©ÓëT³ÉÕý±È£» £¨C£©ÓëT³É·´±È£» £¨D£©ÓëT³ÉÕý±È£» £¨E£©ÓëT³É·´±È¡£
116£® ¸ù¾Ý¾µäµÄÄÜÁ¿°´×ÔÓɶȾù·ÖÔÀí£¬Ã¿¸ö×ÔÓɶȵÄƽ¾ùÄÜÁ¿Îª £¨ £©
£¨A£©kT/4£» £¨B£©kT/3£» £¨C£©kT/2£» £¨D£©3kT/2£» £¨E£©kT¡£
117£® ÔÚ20¡æʱ£¬µ¥Ô×ÓÀíÏëÆøÌåµÄÄÚÄÜΪ £¨ £©
£¨A£©²¿·ÖÊÆÄܺͲ¿·Ö¶¯ÄÜ£» £¨B£©È«²¿ÊÆÄÜ£» £¨C£©È«²¿×ª¶¯¶¯ÄÜ£» £¨D£©È«²¿Æ½¶¯¶¯ÄÜ£» £¨E£©È«²¿Õñ¶¯¶¯ÄÜ¡£
118£® 1Ħ¶ûË«Ô×Ó¸ÕÐÔ·Ö×ÓÀíÏëÆøÌ壬ÔÚ1atmÏ´Ó0¡æÉÏÉýµ½100¡æʱ£¬ÄÚÄܵÄÔöÁ¿Îª £¨ £©
£¨A£©23J£» £¨B£©46J£» £¨C£©2077.5J£» £¨D£©1246.5J£» £¨E£©12500J¡£ 119£® ÈçͼËùʾΪһ¶¨Á¿µÄÀíÏëÆøÌåµÄp¡ªVͼ£¬ÓÉͼ¿ÉµÃ³ö½áÂÛ ( )
£¨A£©ABCÊǵÈιý³Ì£»
£¨B£©TA?TB£»
p(atm)A321
18 BCOV(10?3m3)213ÆÕͨÎïÀíÊÔÌâ¿â
£¨C£©TA?TB£» £¨D£©TA?TB¡£
120£® Ò»¶¨Á¿µÄÀíÏëÆøÌ壬´¦ÔÚijһ³õʼ״̬£¬ÏÖÔÚҪʹËüµÄζȾ¹ýһϵÁÐ״̬±ä»¯ºó»Øµ½³õʼ״̬µÄζȣ¬¿ÉÄÜʵÏֵĹý³ÌΪ £¨ £©
£¨A£©Ïȱ£³Öѹǿ²»±ä¶øʹËüµÄÌå»ýÅòÕÍ£¬½Ó×ű£³ÖÌå»ý²»±ä¶øÔö´óѹǿ£» £¨B£©Ïȱ£³Öѹǿ²»±ä¶øʹËüµÄÌå»ý¼õС£¬½Ó×ű£³ÖÌå»ý²»±ä¶ø¼õСѹǿ£»
£¨C£©Ïȱ£³ÖÌå»ý²»±ä¶øʹËüµÄѹǿÔö´ó£¬½Ó×ű£³Öѹǿ²»±ä¶øʹËüÌå»ýÅòÕÍ£» £¨D£©Ïȱ£³ÖÌå»ý²»±ä¶øʹËüµÄѹǿ¼õС£¬½Ó×ű£³Öѹǿ²»±ä¶øʹËüÌå»ýÅòÕÍ¡£
121£® ÆøÌåµÄĦ¶û¶¨Ñ¹ÈÈÈÝCp´óÓÚĦ¶û¶¨ÌåÈÈÈÝCv£¬ÆäÖ÷ÒªÔÒòÊÇ £¨ £©
£¨A£©ÅòÕÍϵÊý²»Í¬£» £¨B£©Î¶Ȳ»Í¬£»
£¨C£©ÆøÌåÅòÕÍÐè×÷¹¦£» £¨D£©·Ö×ÓÒýÁ¦²»Í¬¡£
122£® ѹǿ¡¢Ìå»ýºÍζȶ¼Ïàͬ£¨³£ÎÂÌõ¼þ£©µÄÑõÆøºÍº¤ÆøÔÚµÈѹ¹ý³ÌÖÐÎüÊÕÁËÏàµÈµÄÈÈÁ¿£¬ËüÃǶÔÍâ×÷µÄ¹¦Ö®±ÈΪ £¨ £©
£¨A£©1:1£» £¨B£©5:9£» £¨C£©5:7£» £¨D£©9:5¡£
123£® һĦ¶ûµ¥Ô×ÓÀíÏëÆøÌ壬´Ó³õ̬ζÈT1¡¢Ñ¹Ç¿p1¡¢Ìå»ýV1£¬×¼¾²Ì¬µØµÈÎÂѹËõÖÁÌå»ýV2£¬Íâ½çÐè×÷¶àÉÙ¹¦£¿ £¨ £©
£¨A£©RT1ln
124£® Ò»¾øÈÈÃܱյÄÈÝÆ÷£¬Óøô°å·Ö³ÉÏàµÈµÄÁ½²¿·Ö£¬×ó±ßÊ¢ÓÐÒ»¶¨Á¿µÄÀíÏëÆøÌ壬ѹǿΪp0£¬ÓÒ±ßΪÕæ¿Õ£¬½ñ½«¸ô°å³éÈ¥£¬ÆøÌå×ÔÓÉÅòÕÍ£¬µ±ÆøÌå´ïµ½Æ½ºâʱ£¬ÆøÌåµÄѹǿÊÇ
£¨ £©
£¨A£©p0£» £¨B£©p0/2£» £¨C£©2?p0£» £¨D£©p0/2?¡£ (??Cp/Cv)
125£® ÔÚpVͼÉÏÓÐÁ½ÌõÇúÏßabcºÍadc£¬ÓÉ´Ë¿ÉÒԵóöÒÔϽáÂÛ£º £¨ £© V2V£» £¨B£©RT1ln1£» £¨C£©p1(V2?V1)£» £¨D£©p2V2?p1V1¡£ V1V2pabd£¨A£©ÆäÖÐÒ»ÌõÊǾøÈÈÏߣ¬ÁíÒ»ÌõÊǵÈÎÂÏߣ»
£¨B£©Á½¸ö¹ý³ÌÎüÊÕµÄÈÈÁ¿Ïàͬ£»
£¨C£©Á½¸ö¹ý³ÌÖÐϵͳ¶ÔÍâ×÷µÄ¹¦ÏàµÈ£» £¨D£©Á½¸ö¹ý³ÌÖÐϵͳµÄÄÚÄܱ仯Ïàͬ¡£
cVOp126£® ÀíÏëÆøÌ忨ŵѻ·¹ý³ÌµÄÁ½Ìõ¾øÈÈÏßϵÄÃæ»ý´óС£¨Í¼ÖÐÒõÓ°²¿·Ö£©·Ö±ðΪS1 19
S1OS2VÆÕͨÎïÀíÊÔÌâ¿â
ºÍS2£¬ÔòÁ½ÕߵĴóС¹ØϵΪ£º£¨ £©
£¨A£©S1>S2£» £¨B£©S1 127£® ¡°ÀíÏëÆøÌåÓëµ¥Ò»ÈÈÔ´½Ó´¥×÷µÈÎÂÅòÕÍʱ£¬ÎüÊÕµÄÈÈÁ¿È«²¿ÓÃÀ´¶ÔÍâ×÷¹¦¡£¡±¶Ô´Ë˵·¨£¬ÓÐÈçϼ¸ÖÖÆÀÂÛ£¬ÄĸöÊÇÕýÈ·µÄ£¿ £¨ £© £¨A£©²»Î¥·´ÈÈÁ¦Ñ§µÚÒ»¶¨ÂÉ£¬µ«Î¥·´ÈÈÁ¦Ñ§µÚ¶þ¶¨ÂÉ£» £¨B£©²»Î¥·´ÈÈÁ¦Ñ§µÚ¶þ¶¨ÂÉ£¬µ«Î¥·´ÈÈÁ¦Ñ§µÚÒ»¶¨ÂÉ£» £¨C£©²»Î¥·´ÈÈÁ¦Ñ§µÚÒ»¶¨ÂÉ£¬Ò²²»Î¥·´ÈÈÁ¦Ñ§µÚ¶þ¶¨ÂÉ£» £¨D£©Î¥·´ÈÈÁ¦Ñ§µÚÒ»¶¨ÂÉ£¬Ò²Î¥·´ÈÈÁ¦Ñ§µÚ¶þ¶¨ÂÉ¡£ 128£® һĦ¶ûµ¥Ô×ÓÀíÏëÆøÌå´Ó³õ̬£¨p1¡¢V1¡¢T1£©×¼¾²Ì¬¾øÈÈѹËõÖÁÌå»ýΪV2ÆäìØ£¨ £© £¨A£©Ôö´ó£» £¨B£©¼õС£» £¨C£©²»±ä£» £¨D£©²»ÄÜÈ·¶¨¡£ 129£® Ò»¶¨Á¿µÄÀíÏëÆøÌåÏòÕæ¿Õ×÷×ÔÓÉÅòÕÍ£¬Ìå»ýÓÉV1ÔöÖÁV2£¬´Ë¹ý³ÌÖÐÆøÌåµÄ£¨ £© £¨A£©ÄÚÄܲ»±ä£¬ìØÔö¼Ó£» £¨B£©ÄÚÄܲ»±ä£¬ìؼõÉÙ£» £¨C£©ÄÚÄܲ»±ä£¬ìز»±ä£» £¨D£©ÄÚÄÜÔö¼Ó£¬ìØÔö¼Ó¡£ 130£® Ò»ÈÈ»úÓÉζÈΪ727¡æµÄ¸ßÎÂÈÈÔ´ÎüÈÈ£¬ÏòζÈΪ527¡æµÄµÍÎÂÈÈÔ´·ÅÈÈ£¬ÈôÈÈ»úÔÚ×î´ó¿ÉÄÜЧÂÊϹ¤×÷¡¢ÇÒÎüÈÈΪ2000½¹¶ú£¬ÈÈ»ú×÷¹¦Ô¼Îª £¨ £© £¨A£©400J£» £¨B£©1450J£» £¨C£©1600J£» £¨D£©2000J£» £¨E£©2760J¡£ 131£® ÔÚ¹¦ÓëÈȵÄת±ä¹ý³ÌÖУ¬ÏÂÃæµÄÄÇЩÐðÊöÊÇÕýÈ·µÄ£¿ £¨ £© £¨A£©ÄÜÖƳÉÒ»ÖÖÑ»·¶¯×÷µÄÈÈ»ú£¬Ö»´ÓÒ»¸öÈÈÔ´ÎüÈ¡ÈÈÁ¿£¬Ê¹Ö®ÍêÈ«±äΪÓÐÓù¦£» £¨B£©ÆäËûÑ»·µÄÈÈ»úЧÂʲ»¿ÉÄÜ´ïµ½¿ÉÄ濨ŵ»úµÄЧÂÊ£¬Òò´Ë¿ÉÄ濨ŵ»úµÄЧÂÊ×î¸ß£» £¨C£©ÈÈÁ¿²»¿ÉÄÜ´ÓµÍÎÂÎïÌå´«µ½¸ßÎÂÎïÌ壻 £¨D£©¾øÈȹý³Ì¶ÔÍâ×÷Õý¹¦£¬ÔòϵͳµÄÄÚÄܱؼõÉÙ¡£ 132£® ÏÂÁÐÄÄÒ»ÄÜÁ¿µÄ¹â×Ó£¬Äܱ»´¦ÔÚn=2µÄÄܼ¶µÄÇâÔ×ÓÎüÊÕ£¿ £¨ £© £¨A£©1.50eV£» £¨B£©1.89eV£» £¨C£©2.16eV£» £¨D£©2.41eV£» £¨E£©2.50eV¡£ 133£® ¹âÆ×ϵÖÐÆ×ÏßµÄƵÂÊ£¨ÈçÇâÔ×ӵİͶûĩϵ£© £¨ £© £¨A£©¿ÉÎÞÏÞÖƵØÑÓÉìµ½¸ßƵ²¿·Ö£» £¨B£©ÓÐijһ¸öµÍƵÏÞÖÆ£» £¨C£©¿ÉÎÞÏÞÖƵØÑÓÉìµ½µÍƵ²¿·Ö£» £¨D£©ÓÐijһ¸ö¸ßƵÏÞÖÆ£» £¨E£©¸ßƵºÍµÍƵ¶¼ÓÐÒ»¸öÏÞÖÆ¡£ 134£® ¹ØÓÚ·øÉ䣬ÏÂÁм¸ÖÖ±íÊöÖÐÄĸöÊÇÕýÈ·? £¨ £© £¨A£©Ö»ÓиßÎÂÎïÌå²ÅÓзøÉ䣻 £¨B£©µÍÎÂÎïÌåÖ»ÎüÊÕ·øÉ䣻 £¨C£©ÎïÌåÖ»ÓÐÎüÊÕ·øÉäʱ²ÅÏòÍâ·øÉ䣻 £¨D£©ÈκÎÎïÌ嶼ÓзøÉä¡£ 135£® ¹âµçЧӦÖйâµç×ӵijõ¶¯ÄÜÓëÈëÉä¹âµÄ¹ØϵÊÇ £¨ £© £¨A£©ÓëÈëÉä¹âµÄƵÂʳÉÕý±È£» £¨B£©ÓëÈëÉä¹âµÄÇ¿¶È³ÉÕý±È£» £¨C£©ÓëÈëÉä¹âµÄƵÂʳÉÏßÐÔ¹Øϵ£» £¨D£©ÓëÈëÉä¹âµÄÇ¿¶È³ÉÏßÐÔ¹Øϵ¡£ 136£® ÓÃÁ½ÊøƵÂÊ¡¢¹âÇ¿¶¼ÏàͬµÄ×ϹâÕÕÉäµ½Á½ÖÖ²»Í¬µÄ½ðÊô±íÃæÉÏ£¬²úÉú¹âµçЧӦ£¬Ôò£º £¨ £© £¨A£©Á½ÖÖÇé¿öϵĺìÏÞƵÂÊÏàͬ£» 20