ÌâÄ¿ÄÚÈÝ

ÈçͼËùʾ,ÔÚ³¤Îª 2L¡¢¿íΪ L µÄ¾ØÐÎÇøÓò ABCD ÄÚÓе糡ǿ¶È´óСΪ E¡¢·½ÏòÊúÖ±ÏòϵÄÔÈÇ¿µç³¡¡£Ò»ÖÊÁ¿Îª m£¬µçÁ¿Îª q µÄ´ø¸ºµçµÄÖʵ㣬ÒÔÆ½ÐÐÓÚ AD µÄ³õËÙ¶È´Ó A µãÉäÈë¸ÃÇøÓò£¬½á¹û¸ÃÖʵãÇ¡ÄÜ´Ó C µãÉä³ö¡££¨ÒÑÖªÖØÁ¦¼ÓËÙ¶ÈΪ g£©

£¨1£©¼ÆËã¸ÃÖʵã´Ó A µã½øÈë¸ÃÇøÓòʱµÄ³õËÙ¶È v0¡£

£¨2£©Èô P¡¢Q ·Ö±ðΪ AD¡¢BC ±ßµÄÖе㣬ÏÖ½« PQCD ÇøÓòÄڵĵ糡³·È¥£¬Ôò¸ÃÖʵãµÄ³õËÙ¶Èv0Ϊ¶à´óʱÈÔÄÜ´Ó C µãÉä³ö£¿

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø