Question

£¨18·Ö£©

ÈçͼËùʾ£¬ÔÚ¾øÔµµÄˮƽÃæÉÏ£¬Ïà¸ô2LµÄ£¬4BÁ½µã¹Ì¶¨ÓÐÁ½¸öµçÁ¿¾ùΪQµÄÕýµãµçºÉ£¬G¡¢O¡¢DÊÇABÁ¬ÏßÉϵÄÈý¸öµã£¬OΪÁ¬ÏßµÄÖе㣬CO=OD=¡£Ò»ÖÊÁ¿Îªm¡¢µçÁ¿ÎªqµÄ´øµçÎï¿éÒÔ³õËÙ¶Èv₀´Ócµã³ö·¢ÑØABÁ¬ÏßÏòBÔ˶¯£¬Ô˶¯¹ý³ÌÖÐÎï¿éÊܵ½´óСºã¶¨µÄ×èÁ¦×÷Ó㬵«ÔÚËÙ¶ÈΪÁãʱ£¬×èÁ¦Ò²ÎªÁã¡£µ±Îï¿éÔ˶¯µ½Oµãʱ£¬Îï¿éµÄ¶¯ÄÜΪ³õ¶¯ÄܵÄn±¶£¬µ½´ïDµã¸ÕºÃËÙ¶ÈΪÁ㣬Ȼºó·µ»Ø×öÍù¸´Ô˶¯£¬Ö±ÖÁ×îºó¾²Ö¹ÔÚOµã¡£ÒÑÖª¾²µçÁ¦ºãÁ¿Îªk£¬Çó£º

   £¨1£©ABÁ½´¦µÄµãµçºÉÔÚcµã²úÉúµÄµç³¡Ç¿¶ÈµÄ´óС£»

   £¨2£©Îï¿éÔÚÔ˶¯ÖÐÊܵ½µÄ×èÁ¦µÄ´óС£»

   £¨3£©´øµçÎï¿éÔڵ糡ÖÐÔ˶¯µÄ×Ü·³Ì¡£

 

Answer 1

¡¾´ð°¸¡¿

£¨1£©

£¨2£©

£¨3£©

¡¾½âÎö¡¿£¨1£©£¨5·Ö£©ÉèÁ½¸öÕýµãµçºÉÔڵ糡ÖÐCµãµÄ³¡Ç¿·Ö±ðΪE₁ºÍE₂£¬ÔÚCµãµÄºÏ³¡Ç¿ÎªE_C

                                                                                    ¡­¡­¡­¡­1·Ö

                                                                                 ¡­¡­¡­¡­1·Ö

                                                                               ¡­¡­¡­¡­1·Ö

                                                                                  ¡­¡­¡­¡­2·Ö

£¨2£©£¨5·Ö£©´øµçÎï¿é´ÓCµãÔ˶¯µ½DµãµÄ¹ý³ÌÖУ¬ÏȼÓËÙºó¼õËÙ¡£ABÁ¬ÏßÉ϶ԳƵã

£¬µç³¡Á¦¶Ô´øµçÎï¿é×ö¹¦ÎªÁã¡£ÉèÎï¿éÊܵ½µÄ×èÁ¦ÎªÓɶ¯Äܶ¨Àí

                                                                          ¡­¡­¡­¡­3·Ö

                                                                                  ¡­¡­¡­¡­2·Ö

£¨3£©£¨8·Ö£©Éè´øµçÎï¿é´ÓCµ½Oµãµç³¡Á¦×ö¹¦ÎªW_µç£¬µç¶¯Äܶ¨Àí

                                                     ¡­¡­¡­¡­2·Ö

                                                                       ¡­¡­¡­¡­2·Ö

Éè´øµçÎï¿éÔڵ糡ÖÐÔ˶¯µÄ×Ü·³ÌΪS£¬Óɶ¯Äܶ¨Àí

                                      ¡­¡­¡­¡­2·Ö

                                                                              ¡­¡­¡­¡­2·Ö