A¡¢µ¥Á÷·§ B¡¢½ØÖ¹·§ C¡¢Ë«Ïò·§
43¡¢¡¾µ¥Ñ¡Ì⡿ͨ¾®ÖÐ;Óö×è»ò̽È˹¤¾®µ×²»ÄÜÃͶ٣¬Ì½È˹¤¾®µ×ÒªÁ¬Ì½( )´Î¡££¨ B £© A¡¢¶þ B¡¢Èý C¡¢ËÄ
44¡¢¡¾µ¥Ñ¡Ìâ¡¿Æø¾ÙʱÈËÒªÀ뿪¸ßѹ¹ÜÏßÖÁÉÙ( )m¡££¨ B £© A¡¢5 B¡¢10 C¡¢15
45¡¢¡¾µ¥Ñ¡Ì⡿ΪÁË°²È«£¬¸ßѹÓÍÆøË®²ãÉä¿×Ó¦²ÉÓÃ( )¡££¨ C £© A¡¢³£¹æÉä¿× B¡¢¹ýÓ͹ÜÉä¿× C¡¢Ó͹ܴ«ÊäÉä¿×
46¡¢¡¾µ¥Ñ¡Ìâ¡¿ÉÏÌá¹ÜÖùʱ£¬²úÉúµÄ³é¼³Á¦Äܵ¼Ö¾®µ×ѹÁ¦( )¡££¨ B £© A¡¢Éý¸ß B¡¢½µµÍ C¡¢²»±ä
47¡¢¡¾µ¥Ñ¡Ìâ¡¿µçÔ´Õ¢µ¶Ó¦À뿪¾®¿Ú25mÒÔÍ⣬²¢ÇÒ°²×°ÔÚ( )¡££¨ A A¡¢Öµ°à·¿ B¡¢¹¤¾ß·¿ C¡¢ËÞÉá
48¡¢¡¾µ¥Ñ¡Ìâ¡¿³åÉ°Íê±Ïºó£¬ÒªÉÏÌá¹ÜÖùÖÁÔÉ°ÃæÒÔÉÏ( )m¡££¨ B £© A¡¢10 B¡¢20 C¡¢30
49¡¢¡¾µ¥Ñ¡Ìâ¡¿¾®ÅçµÄÔÒòÊÇ( )¡££¨ C £© A¡¢¾®µ×ѹÁ¦´óÓڵزãѹÁ¦ B¡¢¾®µ×ѹÁ¦µÈÓڵزãѹÁ¦ C¡¢¾®µ×ѹÁ¦Ð¡ÓڵزãѹÁ¦
£© 50¡¢¡¾µ¥Ñ¡Ì⡿ˮƽ¾®¡¢Ð±¾®Í¨¾®ÖÁÈ˹¤¾®µ×ʱ£¬¼Óѹ²»µÃ³¬¹ý( )kN¡££¨ C £© A¡¢10 B¡¢20 C¡¢30
(È«)˾×ê(¾®ÏÂ)Ä£Ä⿼ÊÔº¬´ð°¸



