ÌâÄ¿ÄÚÈÝ

¡¾ÌâÄ¿¡¿Èçͼ£¨a£©£¬ÔÚÌø̨»¬Ñ©±ÈÈüÖУ¬Ô˶¯Ô±ÔÚ¿ÕÖл¬ÏèʱÉíÌåµÄ×Ë̬»áÓ°ÏìÆäÏÂÂäµÄËٶȺͻ¬ÏèµÄ¾àÀ롣ijÔ˶¯Ô±ÏȺóÁ½´Î´ÓͬһÌø̨ÆðÌø£¬Ã¿´Î¶¼´ÓÀ뿪Ìø̨¿ªÊ¼¼Æʱ£¬ÓÃv±íʾËûÔÚÊúÖ±·½ÏòµÄËٶȣ¬Æäv-tͼÏñÈçͼ£¨b£©Ëùʾ£¬t1ºÍt2ÊÇËûÂäÔÚÇãбѩµÀÉϵÄʱ¿Ì¡£Ôò

A. µÚ¶þ´Î»¬Ïè¹ý³ÌÖÐÔÚÊúÖ±·½ÏòÉϵÄλÒƱȵÚÒ»´ÎµÄС

B. µÚ¶þ´Î»¬Ïè¹ý³ÌÖÐÔÚˮƽ·½ÏòÉϵÄλÒƱȵÚÒ»´ÎµÄ´ó

C. µÚ¶þ´Î»¬Ïè¹ý³ÌÖÐÔÚÊúÖ±·½ÏòÉϵÄƽ¾ù¼ÓËٶȱȵÚÒ»´ÎµÄ´ó

D. ÊúÖ±·½ÏòËٶȴóСΪv1ʱ£¬µÚ¶þ´Î»¬ÏèÔÚÊúÖ±·½ÏòÉÏËùÊÜ×èÁ¦±ÈµÚÒ»´ÎµÄ´ó

¡¾´ð°¸¡¿BD

¡¾½âÎö¡¿

A£®ÓÉv-tͼÃæ»ýÒ×ÖªµÚ¶þ´ÎÃæ»ý´óÓÚµÈÓÚµÚÒ»´ÎÃæ»ý£¬¹ÊµÚ¶þ´ÎÊúÖ±·½ÏòÏÂÂä¾àÀë´óÓÚµÚÒ»´ÎÏÂÂä¾àÀ룬ËùÒÔ£¬A´íÎó£»

B£®ÓÉÓÚµÚ¶þ´ÎÊúÖ±·½ÏòÏÂÂä¾àÀë´ó£¬ÓÉÓÚλÒÆ·½Ïò²»±ä£¬¹ÊµÚ¶þ´Îˮƽ·½ÏòλÒƴ󣬹ÊBÕýÈ·

C£®ÓÉÓÚv-tбÂÊÖªµÚÒ»´Î´ó¡¢µÚ¶þ´ÎС£¬Ð±ÂÊÔ½´ó£¬¼ÓËÙ¶ÈÔ½´ó£¬»òÓÉ Ò×Öªa1>a2£¬¹ÊC´íÎó

D£®ÓÉͼÏñбÂÊ£¬ËÙ¶ÈΪv1ʱ£¬µÚÒ»´ÎͼÏñ¶¸ÇÍ£¬µÚ¶þ´ÎͼÏñÏà¶Ôƽ»º£¬¹Êa1>a2£¬ÓÉG-fy=ma£¬¿ÉÖª£¬fy1<fy2£¬¹ÊDÕýÈ·

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø