ÌâÄ¿ÄÚÈÝ
ijͬѧվÔÚµçÌݵذåÉÏ£¬ÀûÓÃËٶȴ«¸ÐÆ÷ºÍ¼ÆËã»úÑо¿Ò»¹Û¹âµçÌÝÉý½µ¹ý³ÌÖеÄÇé¿ö£¬ÈçͼËùʾµÄv-tͼÏóÊǼÆËã»úÏÔʾµÄ¹Û¹âµçÌÝÔÚijһ¶Îʱ¼äÄÚµÄËٶȱ仯Çé¿ö£¨ÏòÉÏΪÕý·½Ïò£©£®¸ù¾ÝͼÏóÌṩµÄÐÅÏ¢£¬¿ÉÒÔÅжÏÏÂÁÐ˵·¨ÖÐÕýÈ·µÄÊÇ
A. 0¡«5sÄÚ£¬¹Û¹âµçÌÝÔÚ¼ÓËÙÉÏÉý£¬¸Ãͬѧ´¦ÓÚʧÖØ״̬
B. 5¡«10sÄÚ£¬¸Ãͬѧ¶ÔµçÌݵذåµÄѹÁ¦µÈÓÚËûËùÊܵÄÖØÁ¦
C. 10¡«20sÄÚ£¬¹Û¹âµçÌÝÔÚ¼ÓËÙϽµ£¬¸Ãͬѧ´¦ÓÚʧÖØ״̬
D. 20¡«25sÄÚ£¬¹Û¹âµçÌÝÔÚ¼ÓËÙϽµ£¬¸Ãͬѧ´¦ÓÚʧÖØ״̬
ÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨ÔòµÄʵÑéÇé¿ö£¬Èçͼ¼×Ëùʾ£¬ÆäÖÐAΪ¹Ì¶¨ÏðƤ½îµÄͼ¶¤£¬OΪÏðƤ½îÓëϸÉþµÄ½áµã£¬OBºÍOCΪϸÉþ¡£Í¼ÒÒÊÇÔÚ°×Ö½Éϸù¾ÝʵÑé½á¹û»³öµÄͼ¡£
£¨1£©Í¼ÒÒÖÐµÄ ÊÇÁ¦F1ºÍF2µÄºÏÁ¦µÄʵ¼ÊÖµ¡££¨Ìî»òÕߣ©
£¨2£©ÔÚʵÑéÖУ¬Èç¹û±£³ÖOCϸÉþλÖò»±ä£¬¸Ä±äOBϸÉþµÄλÖã¬ÄÇôÁ¬½ÓOCϸÉþµÄµ¯»É²âÁ¦¼ÆµÄʾÊýÒ»¶¨»á·¢Éú±ä»¯Âð£¿
´ð£º £¨Ñ¡Ì¡°Ò»¶¨»á¡±£»¡°¿ÉÄܻᡱ£»»ò¡°Ò»¶¨²»»á¡±£©
£¨3£©±¾ÊµÑé²ÉÓõĿÆѧ·½·¨ÊÇ:
A£®ÀíÏëʵÑé·¨ |
B£®µÈЧÌæ´ú·¨ |
C£®¿ØÖƱäÁ¿·¨ |
D£®½¨Á¢ÎïÀíÄ£ÐÍ·¨ |