ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿É£´÷¿ËÔÚ¡¶ÊÀ½çÎÄ»¯Ê·¡·ÖÐ˵£º¡°ÈôÊÇÎÒÃÇÒªÖ¸¶¨ÖÐÊÀ¼Í¿ÆѧÖÕÖ¹ÊÇÄÄÒ»Ä꣬ÎÒÃǾÍÍƾÙ1543Ä꣬ÄÇÄê¸ù¾ÝʵÑé·½·¨¶øÈ·Á¢µÄÁ½±¾»ù±¾µÄ½ü´úÖø×÷³öÊÀÁË£¬Ò»±¾ÊÇάÈøÁôËùÖøµÄ¡¶ÈËÌå½á¹¹¡·£¬Ò»±¾ÊǸç°×ÄáËùÖøµÄ¡¶ÌìÌåÔËÐÐÖ®µÀ·¡·¡£¡±É£´÷¿ËÈÏΪÕâÁ½±¾Öø×÷µÄÖ÷ÒªÒâÒåÔÚÓÚ
A.¾ÀÕýÁËÈËÀà˼ÏëÖеij¤ÆÚ´íÎóÈÏÖª
B.È·Á¢ÆðÁ˽ü´ú×ÔÈ»¿ÆѧµÄÀíÂÛÌåϵ
C.°ïÖúÈËÃǸü¿Í¹ÛÈ«ÃæµØÈÏʶ×ÔÈ»½ç
D.ʹ¿ÆѧÖð½¥´ÓÉñѧµÄèäèôÖнâ·Å³öÀ´
¡¾´ð°¸¡¿D
¡¾½âÎö¡¿
ÒÀ¾Ý²ÄÁÏÖÐÐÅÏ¢¿ÉÖª£¬Î¬ÈøÁôºÍ¸ç°×Äá¾ù×¢ÖØʵÑé¡£½áºÏËùѧ¿ÉÖª£¬ÖÐÊÀ¼ÍµÄÅ·ÖÞ´¦ÓÚ»ù¶½½ÌµÄͳÖÎ֮ϣ¬¿Æѧ¼¼Êõ´¦ÓÚÉñѧÁýÕÖ֮ϣ¬´øÓÐÉñȨɫ²Ê£¬¶øÁ½²¿Öø×÷ÏÔʾÁ˽ü´ú¿ÆѧµÄʵÖÊ£¬°Ñ¿Æѧ´ÓÉñѧµÄèäèôÖнâ·Å³öÀ´£¬ÕâÊÇÕâÁ½±¾Öø×÷µÄÖ÷ÒªÒâÒ壬Òò´ËDÑ¡ÏîÕýÈ·¡£AÑ¡Ïî´íÎó£¬ÕâÁ½²¿Öø×÷µÄÖ÷ÒªÒâÒåÊÇ´ÙʹÖÐÊÀ¼Í¿ÆѧתÏò½ü´ú¿Æѧ£¬²»ÊǾÀÕý´íÎóÈÏʶ£»BÑ¡Ïî´íÎó£¬Å£¶Ù1687Äê·¢±í¡¶×ÔÈ»ÕÜѧµÄÊýѧÔÀí¡·£¬±ê־׎ü´ú×ÔÈ»¿ÆѧµÄÕýʽȷÁ¢²¢ÐγÉÌåϵ£»CÑ¡Ïî´íÎó£¬ÕâÁ½²¿Öø×÷½öÉ漰ҽѧºÍÌìÎÄѧÁ½¸ö·½Ã棬²»ÄÜ°ïÖúÈËÃÇÈ«ÃæÈÏʶ×ÔÈ»½ç¡£¹ÊÕýÈ·´ð°¸ÎªDÑ¡Ïî¡£
¡¾ÌâÄ¿¡¿Ä³ÊµÑéС×éÓÃÈçͼ¼×ËùʾװÖòâÁ¿Ä¾°å¶Ôľ¿éµÄĦ²ÁÁ¦Ëù×öµÄ¹¦¡£ÊµÑéʱ£¬Ä¾¿éÔÚÖØÎïÇ£ÒýÏÂÏòÓÒÔ˶¯£¬ÖØÎïÂäµØºó£¬Ä¾¿é¼ÌÐøÏòÓÒ×öÔȼõËÙÔ˶¯¡£Í¼ÒÒÊÇÖØÎïÂäµØºó´òµã¼ÆʱÆ÷´ò³öµÄÖ½´ø£¬Ö½´øÉϵÄСºÚµãÊǼÆÊýµã£¬ÏàÁÚµÄÁ½¼ÆÊýµãÖ®¼ä»¹ÓÐ4¸öµã£¨Í¼ÖÐδ±ê³ö£©£¬¼ÆÊýµã¼äµÄ¾àÀëÈçͼËùʾ¡£ÒÑÖª´òµã¼ÆʱÆ÷ËùÓý»Á÷µçµÄƵÂÊΪ50 Hz¡£
£¨1£©¿ÉÒÔÅжÏÖ½´øµÄ________£¨Ìî¡°×ó¶Ë¡±»ò¡°ÓҶˡ±£©Óëľ¿éÁ¬½Ó¡£¸ù¾ÝÖ½´øÌṩµÄÊý¾Ý¿É¼ÆËã³ö´òµã¼ÆʱÆ÷ÔÚ´òÏÂAµã¡¢Bµãʱľ¿éµÄËÙ¶ÈvA¡¢vB£¬ÆäÖÐvA£½________m/s¡££¨½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©
£¨2£©Òª²âÁ¿ÔÚAB¶Îľ°å¶Ôľ¿éµÄĦ²ÁÁ¦Ëù×öµÄ¹¦WAB£¬»¹Ó¦²âÁ¿µÄÎïÀíÁ¿ÊÇ________¡££¨ÌîÈëÎïÀíÁ¿Ç°µÄ×Öĸ£©
A£®Ä¾°åµÄ³¤¶ÈL | B£®Ä¾¿éµÄÖÊÁ¿m1 |
C£®ÖØÎïµÄÖÊÁ¿m2 | D£®Ä¾¿éÔ˶¯µÄʱ¼ät |
£¨3£©ÔÚAB¶Îľ°å¶Ôľ¿éµÄĦ²ÁÁ¦Ëù×öµÄ¹¦µÄ±í´ïʽWAB£½________¡££¨ÓÃvA¡¢vBºÍµÚ£¨2£©ÎÊÖвâµÃµÄÎïÀíÁ¿µÄ·ûºÅ±íʾ£©