ÌâÄ¿ÄÚÈÝ
12£®ÓÃÈçͼËùʾÆ÷²ÄÑо¿µç´Å¸ÐÓ¦ÏÖÏóºÍÅж¨¸ÐÓ¦µçÁ÷·½Ïò£®£¨1£©ÓñʻÏß´úÌæµ¼Ïß½«ÊµÑéµç·²¹³äÍêÕû£®
£¨2£©ºÏÉÏ¿ª¹Ø£¬ÄÜʹ¸ÐÓ¦µçÁ÷ÓëÔµçÁ÷µÄÈÆÐз½ÏòÏàͬµÄʵÑé²Ù×÷ÊÇBCD
A£®²åÈëÈíÌú°ô B£®°Î³öСÏßȦ
C£®Ê¹±ä×èÆ÷×èÖµ±ä´ó D£®¶Ï¿ª¿ª¹Ø
£¨3£©Ä³Í¬Ñ§·¢ÏֱպϿª¹Øºó£¬½«»¬Ïß±ä×èÆ÷µÄ»¬Æ¬Ïò×󻬶¯Ê±£¬·¢ÏÖµçÁ÷±íÖ¸ÕëÏòÓÒƫת£®Ôòµ±Ëû½«ÌúоÏòÉϰγöʱ£¬Äܹ۲쵽µçÁ÷¼ÆÖ¸ÕëÏò×ó£¨Ñ¡Ìî¡°ÏòÓÒ¡±»ò¡°Ïò×ó¡±£©Æ«×ª£®
·ÖÎö £¨1£©×¢ÒâÔÚ¸ÃʵÑéÖÐÓÐÁ½¸ö»Ø·£¬Ò»¸öÓÉÏßȦL2ºÍµçÁ÷¼Æ´®Áª¶ø³É£¬ÁíÒ»¸öÓɵç¼ü¡¢»¬¶¯±ä×èÆ÷¡¢µçѹ¡¢ÏßȦL1´®Áª¶ø³É£®
£¨2£©¸ù¾ÝÀã´Î¶¨ÂÉÇó½â£¬Èôʹ¸ÐÓ¦µçÁ÷ÓëÔµçÁ÷µÄÈÆÐз½ÏòÏàͬ£¬ÔòÏßȦL2ÖеĴÅͨÁ¿Ó¦¸Ã¼õС£¬¾Ý´Ë¿ÉÕýÈ·½â´ð£»
£¨3£©¸ù¾ÝÌâÒâÈ·¶¨µçÁ÷±íÖ¸Õëƫת·½ÏòÓë´ÅͨÁ¿±ä»¯¼äµÄ¹Øϵ£¬È»ºó¸ù¾ÝÌâÒâÅжϴÅͨÁ¿ÈçºÎ±ä»¯£¬ÔÙÅжÏÖ¸Õëƫת·½Ïò£®
½â´ð ½â£º£¨1£©½«ÏßȦL2ºÍµçÁ÷¼Æ´®ÁªÐγÉÒ»¸ö»Ø·£¬½«µç¼ü¡¢»¬¶¯±ä×èÆ÷¡¢µçѹ¡¢ÏßȦL1´®Áª¶ø³ÉÁíÒ»¸ö»Ø·¼´¿É£¬ÊµÎïͼÈçÏÂËùʾ£º
£¨2£©¸ù¾ÝÀã´Î¶¨ÂÉ¿ÉÖª£¬Èôʹ¸ÐÓ¦µçÁ÷ÓëÔµçÁ÷µÄÈÆÐз½ÏòÏàͬ£¬ÔòÏßȦL2ÖеĴÅͨÁ¿Ó¦¸Ã¼õС£¬¹Ê°Î³öÏßȦL1¡¢Ê¹±ä×èÆ÷×èÖµ±ä´ó¡¢¶Ï¿ª¿ª¹Ø¾ù¿ÉʹÏßȦL2ÖеĴÅͨÁ¿¼õС£¬¹ÊA´íÎó£¬BCDÕýÈ·£®
£¨3£©ÓÉͼʾ¿ÉÖª£¬½«»¬¶¯±ä×èÆ÷µÄ»¬¶¯Æ¬PÏò×󻬶¯Ê±£¬»¬¶¯±ä×èÆ÷½ÓÈëµç·µÄ×èÖµ¼õС£¬Í¨¹ýÏßȦAµÄµçÁ÷Ôö´ó£¬µçÁ÷²úÉúµÄ´Å³¡ÔöÇ¿£¬´©¹ýÏßȦBµÄ´ÅͨÁ¿Ôö´ó£¬µçÁ÷¼ÆÖ¸ÕëÏòÓÒƫת£¬ÓÉ´Ë¿ÉÖª£¬´©¹ýÏßȦBµÄ´ÅͨÁ¿Ôö´óʱ£¬µçÁ÷±íÖ¸ÕëÏòÓÒÆ«£¬Ôò´ÅͨÁ¿¼õÉÙʱ£¬Ö¸ÕëÏò×óÆ«£»
Èç¹û½«ÌúоÏòÉϰγöʱ£¬´©¹ýÏßȦBµÄ´ÅͨÁ¿¼õÉÙ£¬µçÁ÷±íÖ¸Õë×óÆ«£»
¹Ê´ð°¸Îª£º£¨1£©ÈçÉÏͼËùʾ£º
£¨2£©BCD£»£¨3£©Ïò×ó£®
µãÆÀ ¶ÔÓÚ¸ÃʵÑ飬ҪÃ÷ȷʵÑéÔÀí¼°²Ù×÷¹ý³Ì£¬Æ½Ê±Òª×¢Òâ¼ÓǿʵÑéÁ·Ï°£®
±¾ÌâÎÞ·¨Ö±½ÓÀûÓÃÀã´Î¶¨ÂɽøÐÐÅжϣ¬µ«ÊÇ¿ÉÒÔ¸ù¾ÝÌâÒâµÃ³ö²úÉúʹµçÁ÷±íÖ¸ÕëÓÒÆ«µÄÌõ¼þ£¬¼´¿É²»¸ù¾ÝÈÆÏòÅгö¸÷ÏîÖÐÓ¦¸Ã³öÏÖµÄÏÖÏó£®
A£® | Ö»ÓÐÓË235Áѱä²ÅÄܲúÉúºËÄÜ | |
B£® | ${\;}_{1}^{2}$H+${\;}_{1}^{3}$H¡ú${\;}_{2}^{4}$He+${\;}_{0}^{1}$n·½³ÌËùÃèÊöµÄÊǺËÁѱ䷴Ӧ | |
C£® | ¦ÁÁ£×ÓÉ¢ÉäʵÑéµÄ½á¹ûÖ¤Ã÷Ô×ÓºËÊÇÓÉÖÊ×ÓºÍÖÐ×Ó×é³ÉµÄ | |
D£® | ·ÅÉäÐÔÔªËØ·¢ÉúÕýµç×ÓË¥±äʱ£¬²úÉúµÄкËÖÊÁ¿Êý²»±ä£¬ºËµçºÉÊý¼õÉÙ1 |
A£® | ÖØÁ¦µÄ³åÁ¿Ïàͬ | B£® | µ¯Á¦µÄ³åÁ¿Ïàͬ | C£® | ºÏÁ¦µÄ³åÁ¿Ïàͬ | D£® | ÒÔÉÏ˵·¨¾ù²»¶Ô |
A£® | ÊǼ×ͼ | B£® | ÊÇÒÒͼ | ||
C£® | ¿ÉÄÜÊǼ×ͼ£¬Ò²¿ÉÄÜÊÇÒÒͼ | D£® | ÒÔÉÏ˵·¨¶¼²»¶Ô |
A£® | ½»Á÷µçѹ±í²âÁ¿µÄÊýÖµÊÇƽ¾ùÖµ | |
B£® | ¼ÒÓõçÆ÷£¨ÈçµçµÆÅÝ£©ÉϱêÃ÷µÄ¶î¶¨µçѹֵÊÇÓÐЧֵ | |
C£® | ÕÕÃ÷µçѹ220VÖ¸µÄÊÇÓÐЧֵ | |
D£® | ÕÕÃ÷µçѹ220VÖ¸µÄÊÇ×î´óÖµ |
A£® | ÒòΪ¶¯ÄÜ·¢ÉúÁ˱仯£¬ËùÒÔÍâÁ¦×öÁ˹¦ | |
B£® | ¶¯Äܶ¨ÀíÃèÊöÁ˶¯Äܱ仯µÄÔÒòÊÇÓÉÓÚÍâÁ¦×öÁ˹¦ | |
C£® | ºÏÍâÁ¦¶ÔÎïÌå×ö¹¦Ê±£¬ÎïÌ嶯ÄÜ¿ÉÒÔ²»±ä | |
D£® | ºÏÍâÁ¦×öµÄ¹¦µÈÓÚ¶¯ÄܵÄÔöÁ¿ |
A£® | ½»±äµçѹu2µÄ×î´óÖµUmµÈÓÚU | B£® | ½»±äµçѹu2µÄ×î´óÖµUmµÈÓÚ$\sqrt{2}$U | ||
C£® | ½»±äµçѹu1µÄÓÐЧֵµÈÓÚ$\frac{U}{\sqrt{2}}$ | D£® | ½»±äµçѹu1µÄÓÐЧֵµÈÓÚU |