ÌâÄ¿ÄÚÈÝ
5£®¡°±Ä¼«¡±Ô˶¯ÖУ¬³¤µ¯ÐÔÉþµÄÒ»¶Ë¹Ì¶¨£¬ÁíÒ»¶Ë°óÔÚÈËÉíÉÏ£¬ÈË´Ó¼¸Ê®Ã׸ߴ¦ÌøÏ£¬½«±Ä¼«¹ý³Ì¼ò»¯ÎªÈËÑØÊúÖ±·½ÏòµÄÔ˶¯£¬´ÓÉþÇ¡ºÃÉìÖ±£¬µ½È˵ÚÒ»´ÎϽµÖÁ×îµÍµãµÄ¹ý³ÌÖУ¬ÏÂÁзÖÎöÕýÈ·µÄÊÇ£¨¡¡¡¡£©A£® | ÉþÇ¡ºÃÉìֱʱ£¬ÉþµÄµ¯ÐÔÊÆÄÜΪÁ㣬È˵Ķ¯ÄÜ×î´ó | |
B£® | Éþ¶ÔÈ˵ÄÀÁ¦Ê¼ÖÕ×ö¸º¹¦£¬È˵Ķ¯ÄÜÒ»Ö±¼õС | |
C£® | Éþ¶ÔÈ˵ijåÁ¿Ê¼ÖÕÏòÉÏ£¬È˵Ķ¯Á¿ÏÈÔö´óºó¼õС | |
D£® | ÈËÔÚ×îµÍµãʱ£¬Éþ¶ÔÈ˵ÄÀÁ¦µÈÓÚÈËËùÊܵÄÖØÁ¦ |
·ÖÎö ´ÓÉþ×Ó±Á½ôµ½ÈËϽµµ½×îµÍµãµÄ¹ý³ÌÖУ¬¿ªÊ¼Ê±È˵ÄÖØÁ¦´óÓÚµ¯Á¦£¬ÈËÏòϼÓËÙ£»È»ºóÔÙ¼õËÙ£¬Ö±ÖÁËÙ¶ÈΪÁ㣻ÔÙ·´Ïòµ¯»Ø£»¸ù¾Ý¶¯Á¿¼°¹¦µÄ֪ʶ¿ÉÃ÷È·¶¯Á¿¡¢¶¯Äܺ͵¯ÐÔÊÆÄܵı仯£®
½â´ð ½â£º´ÓÉþ×Ó±Á½ôµ½ÈËϽµµ½×îµÍµãµÄ¹ý³ÌÖУ¬¿ªÊ¼Ê±È˵ÄÖØÁ¦´óÓÚµ¯Á¦£¬ÈËÏòÏÂ×ö¼ÓËÙÔ˶¯£»È»ºóÀÁ¦´óÓÚÖØÁ¦ºóÔÙ×ö¼õËÙÔ˶¯£¬ËùÒÔÈ˵ÄËÙ¶ÈÏÈÔö´óºó¼õС£®
A¡¢Éþ×ÓÇ¡ºÃÉìֱʱ£¬Éþ×ÓµÄÐαäÁ¿ÎªÁ㣬µ¯ÐÔÊÆÄÜΪÁ㣻µ«´ËʱÈ˵ÄËٶȲ»ÊÇÔö´ó£¬¶¯Äܲ»ÊÇ×î´ó£»¹ÊA´íÎó£»
B¡¢Ôڸùý³ÌÖУ¬ÀÁ¦ÓëÔ˶¯·½ÏòʼÖÕÏà·´£¬Éþ×ÓµÄÁ¦Ò»Ö±×ö¸º¹¦£»µ«ÓÉ·ÖÎö¿ÉÖª£¬È˵Ķ¯ÄÜÏÈÔö´óºó¼õС£»¹ÊB´íÎó£»
C¡¢ÓÉÓÚÉþ¶ÔÈ˵Ä×÷ÓÃÁ¦Ò»Ö±ÏòÉÏ£¬¹ÊÉþ¶ÔÈ˵ijåÁ¿Ê¼ÖÕÏòÉÏ£¬ÓÉÓÚÈËÔÚϽµÖÐËÙ¶ÈÏÈÔö´óºó¼õС£»¹Ê¶¯Á¿ÏÈÔö´óºó¼õС£¬¹ÊCÕýÈ·£»
D¡¢ÈËÔÚ×îµÍµãʱÓÐÏòÉϵļÓËٶȣ¬ËùÒÔÉþ×Ó¶ÔÈ˵ÄÀÁ¦Ò»¶¨´óÓÚÈËÊܵ½µÄÖØÁ¦£»¹ÊD´íÎó£®
¹ÊÑ¡£ºC
µãÆÀ ±¾Ì⿼²é±äÁ¦×÷ÓÃÏÂÎïÌåµÄÔ˶¯Çé¿ö·ÖÎö£¬¹Ø¼üÊÇÃ÷È·È˵ÄÔ˶¯¹ý³Ì£¬¼´¿É¸ù¾Ý¶¯Á¿¶¨ÀíºÍ¶¯Äܶ¨Àí½øÐзÖÎöÇó½â£®
A£® | ¸»À¼¿ËÁÖ | B£® | ·¨ÀµÚ | C£® | ¿âÂØ | D£® | °Â˹ÌØ |
A£® | ÏàÅöÇ°Á½ÇòÔ˶¯Öж¯Á¿²»Êغã | |
B£® | ÏàÅöÇ°Á½ÇòµÄ×ܶ¯Á¿Ëæ¾àÀëµÄ¼õС¶øÔö´ó | |
C£® | ÅöײǰºóÁ½Çò×é³Éϵͳ¶¯Á¿Êغã | |
D£® | Á½ÇòÏàÅö·ÖÀëºóµÄ×ܶ¯Á¿²»µÈÓÚÏàÅöÇ°µÄ×ܶ¯Á¿£¬ÒòΪÅöÇ°×÷ÓÃÁ¦ÎªÒýÁ¦£¬ÅöºóΪ³âÁ¦ |
A£® | $\frac{\sqrt{3}}{3}$B | B£® | $\frac{\sqrt{3}}{2}$B | C£® | $\sqrt{3}$B | D£® | 2B |
A£® | ÖØÁ¦¡¢Æ½ÃæANµÄÖ§³ÖÁ¦ | |
B£® | ÖØÁ¦¡¢Æ½ÃæANµÄÖ§³ÖÁ¦£¬Ð±ÃæAMµÄµ¯Á¦ | |
C£® | ÖØÁ¦¡¢Æ½ÃæANµÄÖ§³ÖÁ¦£¬Ð±ÃæAMµÄµ¯Á¦ºÍ¾²Ä¦²ÁÁ¦ | |
D£® | ÖØÁ¦¡¢Æ½ÃæANµÄÖ§³ÖÁ¦£¬Ð±ÃæAMµÄ¾²Ä¦²ÁÁ¦ |