£¨1£©ÏÂÁÐ˵·¨ÖÐÕýÈ·µÄÊÇ______
A£®¹âËÙ²»±äÔÀíÊÇ£ºÕæ¿ÕÖеĹâËÙÔÚ²»Í¬µÄ¹ßÐԲο¼ÏµÖж¼ÊÇÏàͬµÄ
B£®ÅÄÉã²£Á§³÷´°ÄÚµÄÎïƷʱ£¬ÍùÍùÔÚ¾µÍ·Ç°¼Ó×°Ò»¸öÆ«ÕñƬÒÔÔö¼Ó͸Éä¹âµÄÇ¿¶È
C£®ÔÚÊÜÆÈÕñ¶¯ÖУ¬Çý¶¯Á¦µÄƵÂÊ×ÜÊǵÈÓÚÎïÌåµÄ¹ÌÓÐƵÂÊ
D£®Á½Áв¨Ïàµþ¼Óʱ£¬Õñ¶¯¼ÓÇ¿ÇøÓòÓë¼õÈõÇøÓòÓ¦½»Ìæ±ä»¯
£¨2£©Ò»Áмòгºá²¨ÔÚ¾ùÔȽéÖÊÖÐÑØxÖáÕý·½Ïò´«²¥£¬²¨Ô´Î»ÓÚ×ø±êԵ㣬ÔÚt=0ʱ¿Ì²¨Ô´¿ªÊ¼Õñ¶¯£¬ÔÚt=3sʱ¿ÌµÄ²¨ÐÎÈçͼ1Ëùʾ£¬´Ëʱx=3m´¦µÄÖʵã¸Õ¿ªÊ¼Õñ¶¯£®Ôò______A£®²¨Ô´¿ªÊ¼Õñ¶¯Ê±µÄ·½ÏòÑØyÖḺ·½Ïò
B£®t=7sʱ£¬x=5m´¦µÄÖʵãͨ¹ýµÄ·³ÌΪ2cm
C£®t=7sʱ£¬x=2m´¦µÄÖʵãÔÚ²¨¹È
D£®t=7sʱ£¬x=6m´¦µÄÖʵãÔÚ²¨·å
£¨3£©Èçͼ2Ëùʾ£¬Ò»µÈÑüÖ±½ÇÈýÀâ¾µ£¬·ÅÔÚÕæ¿ÕÖУ¬AB=AC£®ÔÚÀâ¾µ²àÃæAB×ó·½ÓÐÒ»µ¥É«¹âÔ´S£¬´ÓS·¢³öµÄ¹âÏßSDÒÔ60¡ãÈëÉä½Ç´ÓAB²àÃæÖеãÉäÈëÈýÀâ¾µ£¬µ±Ëü´Ó²àÃæACÉä³öʱ£¬³öÉä¹âÏßÓëÀâ¾µ²àÃæAC¼äµÄ¼Ð½ÇΪ30¡ã£®Çó´ËÈýÀâ¾µµÄÕÛÉäÂÊ£®