£¨2013?¹ã¶«Ä£Ä⣩СÃ÷ÀûÓÃÈÈÃôµç×èÉè¼ÆÁËÒ»¸ö¡°¹ýÈÈ×Ô¶¯±¨¾¯µç·¡±£¬Èçͼ21¼×Ëùʾ£®½«ÈÈÃôµç×è R °²×°ÔÚÐèҪ̽²âζȵĵط½£¬µ±»·¾³Î¶ÈÕý³£Ê±£¬¼ÌµçÆ÷µÄÉÏ´¥µã½Ó´¥£¬Ï´¥µã·ÖÀ룬ָʾµÆÁÁ£»µ±»·¾³Î¶ȳ¬¹ýijһֵʱ£¬¼ÌµçÆ÷µÄÏ´¥µã½Ó´¥£¬ÉÏ´¥µã·ÖÀ룬¾¯ÁåÏ죮ͼ¼×Öм̵çÆ÷µÄ¹©µçµçѹU1=3V£¬¼ÌµçÆ÷ÏßȦÓÃÆá°üÏßÈƳɣ¬Æäµç×èR0Ϊ30¦¸£®µ±ÏßȦÖеĵçÁ÷´óÓÚµÈÓÚ50mA Ê±£¬¼ÌµçÆ÷µÄÏÎÌú½«±»ÎüºÏ£¬¾¯ÁåÏ죮ͼÒÒÊÇÈÈÃôµç×èµÄ×èÖµËæζȱ仯µÄͼÏó£® 
£¨1£©ÓÉͼÒÒ¿ÉÖª£¬µ±»·¾³Î¶ÈΪ40¡æʱ£¬ÈÈÃôµç×è×èֵΪ
70
70
¦¸£®µ±»·¾³Î¶ÈÉý¸ßʱ£¬ÈÈÃôµç×è×èÖµ½«
¼õС
¼õС
£¬¼ÌµçÆ÷µÄ´ÅÐÔ½«
Ôö´ó
Ôö´ó
£¨¾ùÑ¡Ìî¡°Ôö´ó¡±¡¢¡°¼õС¡±»ò¡°²»±ä¡±£©£®
£¨2£©Í¼¼×Öо¯ÁåµÄ½ÓÏßÖùCÓ¦Óë½ÓÏßÖù
B
B
ÏàÁ¬£¬Ö¸Ê¾µÆµÄ½ÓÏßÖùDÓ¦Óë½ÓÏßÖù
A
A
£¨¾ùÑ¡Ìî¡°A¡±»ò¡°B¡±£© ÏàÁ¬£®
£¨3£©Í¼¼×ÖÐÏßȦ϶ËPµÄ´Å¼«ÊÇ
S
S
£¨Ñ¡Ìî¡°N¡±»ò¡°S¡±£© ¼«£®
·ÖÎö£º£¨1£©´ÓͼÒÒÖÐÕÒ³ö40¡æ¶ÔÓ¦µÄÈÈÃôµç×èµÄ×èÖµ£¬ÓÉͼÏó·ÖÎöÈÈÃôµç×è×èÖµËæζȵı仯¹Øϵ£¬½áºÏÅ·Ä·¶¨ÂÉ·ÖÎöµç·ÖеçÁ÷µÄ±ä»¯£¬´Ó¶øÅжϳöµç´ÅÌú´ÅÐԵı仯£»
£¨2£©ÓÉÌâ¸ÉÖС°µ±»·¾³Î¶ȳ¬¹ýijһֵʱ£¬¼ÌµçÆ÷µÄÏ´¥µã½Ó´¥£¬ÉÏ´¥µã·ÖÀ룬¾¯ÁåÏ족Åжϳö¾¯ÁåºÍָʾµÆµÄÁ¬½ÓÇé¿ö£»
£¨3£©ÓÉÏßȦÖеĵçÁ÷·½Ïò£¬¸ù¾Ý°²ÅඨÔòÅжϳöµç´ÅÌúµÄNS¼«£®
½â´ð£º½â£º£¨1£©·ÖÎöÒÒͼ£¬ÕÒµ½ÈÈÃôµç×è40¡æ¶ÔÓ¦µÄ×èֵΪ70¦¸£¬²¢ÇÒ·ÖÎöͼÏó·¢ÏÖ£ºÎ¶ÈÉý¸ßʱ£¬ÈÈÃôµç×è×èÖµ¼õС£¬¸ù¾ÝÅ·Ä·¶¨ÂÉ£¬µç·ÖеçÁ÷¾Í»áÔö´ó£¬µç´ÅÌúµÄ´ÅÐԾͻáÔö´ó£»
£¨2£©ÓÉÌâÖС°µ±»·¾³Î¶ȳ¬¹ýijһֵʱ£¬¼ÌµçÆ÷µÄÏ´¥µã½Ó´¥£¬ÉÏ´¥µã·ÖÀ룬¾¯ÁåÏ족£¬ËùÒÔ¾¯ÁåµÄ½ÓÏßÖùCÓ¦Óë½ÓÏßÖùBÁ¬£¬Ö¸Ê¾µÆµÄ½ÓÏßÖùDÓ¦Óë½ÓÏßÖùAÏàÁ¬£»
£¨3£©ÓÉ°²ÅඨÔò¿ÉÅжϳöÏßȦµÄ϶ËPµÄ¼«ÐÔÊÇS¼«£»
¹Ê´ð°¸Îª£º£¨1£©70£»¼õС£»Ôö´ó£»£¨2£©B£»A£»£¨3£©S£®
µãÆÀ£º±¾Ìâ¼È¿¼²éµç´Å¼ÌµçÆ÷Ô­ÀíµÄ·ÖÎö£¬Ò²¿¼²éÁ˽áºÏÅ·Ä·¶¨ÂɵÄÄÚÈݽøÐÐÏà¹ØµÄ¼ÆË㣬×ÛºÏÐԱȽÏÇ¿£¬½âÌâʱҪ×Ðϸ·ÖÎö£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2013?¹ã¶«Ä£Ä⣩Ӣ¹úÎïÀíѧ¼Ò·¨À­µÚ¾­¹ý10Ä겻иµÄŬÁ¦£¬·¢ÏÖÁ˵ç´Å¸ÐÓ¦ÏÖÏó£¬Í¼ÖÐËùʾµÄËĸöʵÑéÖУ¬±íʾÕâÒ»ÖØ´ó·¢ÏÖµÄÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2013?¹ã¶«Ä£Ä⣩ÔÚÏÂÁм¸×éÄÜÔ´ÖУ¬¶¼ÊôÓÚ¿ÉÔÙÉúÄÜÔ´µÄÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2013?¹ã¶«Ä£Ä⣩¿ØÖÆÔëÉùÓкܶà´ëÊ©£¬ÆäÖÐ×î¸ù±¾µÄ»·½ÚÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2013?¹ã¶«Ä£Ä⣩ÏÂÁÐ×ö·¨ÖУ¬·ûºÏ°²È«Óõç¹æ·¶µÄÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2013?¹ã¶«Ä£Ä⣩ÌîдÎï̬±ä»¯£º£¨1£©±±·½µÄ¶¬Ì죬²£Á§´°ÉϽá±ù»¨£¬ÕâÊÇ
Äý»ª
Äý»ª
ÏÖÏó£»
£¨2£©´ºÌ죬ÍòÎ︴ËÕ£¬±ùÑ©ÏûÈÚ£¬ÕâÊÇ
ÈÛ»¯
ÈÛ»¯
ÏÖÏó£»
£¨3£©Ô糿³öÏÖµÄÎíÊôÓÚ
Òº»¯
Òº»¯
ÏÖÏó£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸