ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿ÈçͼËùʾ£¬Ò»Çᵯ»ÉÖ±Á¢ÓÚˮƽÃæÉÏ£¬µ¯»É´¦ÓÚÔ³¤Ê±É϶ËÔÚOµã£¬½«Ò»ÖÊÁ¿ÎªMµÄÎï¿é¼×Çá·ÅÔÚµ¯»ÉÉ϶ˣ¬Îï¿éϽµµ½AµãʱËÙ¶È×î´ó£¬Ï½µµ½BµãʱËÙ¶ÈΪ0£¬O¡¢B¼ä¾àΪh¡£»»ÓÃÁíÒ»Îï¿éÒÒ£¬´Ó¾àOµã¸ßΪhµÄCµã¾²Ö¹ÊÍ·Å£¬Ò²¸ÕºÃÄܽ«µ¯»ÉѹËõµ½Bµã£¬²»¼Æ¿ÕÆø×èÁ¦£¬µ¯»ÉʼÖÕÔÚµ¯ÐÔÏÞ¶ÈÄÚ£¬ÖØÁ¦¼ÓËٶȴóСΪg£¬Ôò
A. µ¯»ÉµÄ×î´óµ¯ÐÔÊÆÄÜΪMgh
B. ÒÒµÄ×î´óËÙ¶ÈΪ
C. ÒÒµÄÖÊÁ¿ÊÇM/2
D. ÒÒµÄ×î´ó¶¯Äܱȼ׵Ĵó
¡¾´ð°¸¡¿ACD
¡¾½âÎö¡¿
A£®ÓÉÓÚµ¯»ÉµÄµ¯Á¦ÓëÐαäÁ¿³ÉÕý±È£¬ËùÒÔÎï¿é¼×ÏòϵÄÔ˶¯¾ßÓжԳÆÐÔ£¬ÓÉÌâ¿ÉÖª£¬Îï¿é¼×ÔÚBµãµÄ¼ÓËٶȴóСΪ£¬Ôò·½ÏòÒ»¶¨ÏòÉÏ£¬ÓɶԳÆÐÔ¿ÉÖª£¬Îï¿é¼×ÔÚBµãµÄËÙ¶ÈΪ0£»Îï¿é¼×ÏòÏÂÔ˶¯µÄ¹ý³ÌÖУ¬Îï¿é¼×µÄÖØÁ¦ÊÆÄÜת»¯Îªµ¯»ÉµÄµ¯ÐÔÊÆÄÜ£¬ËùÒÔÎï¿é¼×ÔÚBµãʱ£¬µ¯»ÉµÄµ¯ÐÔÊÆÄÜ×î´óΪ
£¬¹ÊÑ¡ÏîAÕýÈ·£»
B£®ÓÉ×ÔÓÉÂäÌåÔ˶¯µÄ¹«Ê½¿ÉµÃ£¬Îï¿éÒÒµ½´ïOµãʱµÄËٶȣ¬Îï¿éÒÒµ½´ïOµãºó£¬¸Õ½Ó´¥µ¯»Éʱ£¬µ¯»ÉµÄµ¯Á¦Ð¡ÓÚÎï¿éÒÒµÄÖØÁ¦£¬ËùÒÔÎï¿éÒÒ½«¼ÌÐøÏòÏÂ×ö¼ÓËÙÔ˶¯£¬ËùÒÔÎï¿éÒÒµÄ×î´óËÙ¶ÈÒ»¶¨´óÓÚ
£¬¹ÊÑ¡ÏîB´íÎó£»
C£®Îï¿éÒÒÏòÏÂÔ˶¯µÄ¹ý³ÌÖУ¬Îï¿éÒÒµÄÖØÁ¦ÊÆÄÜת»¯Îªµ¯»ÉµÄµ¯ÐÔÊÆÄÜ£¬Ôò´ÓCµ½BµÄ¹ý³ÌÖÐÔòÓУº£¬ËùÒÔ
£¬¹ÊÑ¡ÏîCÕýÈ·£»
D£®Îï¿é¼×µ½´ïAµãµÄËÙ¶È×î´ó£¬ÔòÎï¿é¼×ÔÚAµãÊܵ½µÄµ¯»ÉµÄµ¯Á¦µÈÓÚÎï¿é¼×µÄÖØÁ¦£¬¼´£¬ÓÉÎï¿é¼×Ô˶¯µÄ¶Ô³ÆÐÔ¿ÉÖª£¬µ½´ïBµãʱÔòÓÐ
£¬ÁªÁ¢½âµÃ
£¬¸ù¾Ý¶¯Äܶ¨Àí¿ÉµÃ£º
£»ÒÒÊܵ½µÄºÏÍâÁ¦µÈÓÚ0ʱËÙ¶È×î´ó£¬´ËʱÓÐ
£¬ÁªÁ¢½âµÃ
£¬¸ù¾Ý¶¯Äܶ¨Àí¿ÉµÃ£º
£¬ÓÉÓÚ
£¬ÔòÓÐ
£¬¹ÊÑ¡ÏîDÕýÈ·¡£
![](http://thumb2018.1010pic.com/images/loading.gif)