ÌâÄ¿ÄÚÈÝ
Óõ¥°Ú²â¶¨ÖØÁ¦¼ÓËٶȵÄʵÑéÖУº
£¨1£©ÓÐÈçÏÂÆ÷²Ä¹©Ñ¡Óã¬Çë°ÑӦѡÓõÄÆ÷²ÄÌîÔÚºáÏßÉÏ £¨Ìî×Öĸ£©£®
A£®1m³¤µÄ´ÖÉþ B£®1m³¤µÄϸÏß C£®°ë¾¶Îª1cmµÄСľÇò D£®°ë¾¶Îª1cmµÄСǦÇò E£®Ê±ÖÓ F£®Ãë±í G£®×îС¿Ì¶ÈΪmmµÄÃ×³ß H£®×îС¿Ì¶ÈΪcmµÄÃ×³ß I£®Ìú¼Ų̈ J£®¸½íÀÂëµÄÌìƽ£¬
£¨2£©Ò»Î»Í¬Ñ§Óõ¥°Ú×ö²â¶¨ÖØÁ¦¼ÓËٶȵÄʵÑ飬Ëû½«°Ú¹ÒÆðºó£¬½øÐÐÁËÈçϲ½Ö裺
A£®²â°Ú³¤l£ºÓÃÃ׳ßÁ¿³ö°ÚÏߵij¤¶È£»
B£®²âÖÜÆÚT£º½«°ÚÇòÀÆð£¬È»ºó·Å¿ª£¬ÔÚ°ÚÇòij´Îͨ¹ý×îµÍµãʱ£¬°´ÏÂÃë±í¿ªÊ¼¼Æʱ£¬Í¬Ê±½«´Ë´Îͨ¹ý×îµÍµã×÷ΪµÚ1´Î£¬½Ó×ÅÒ»Ö±Êýµ½°ÚÇòµÚ60´Îͨ¹ý×îµÍµãʱ£¬°´ÏÂÃë±íÍ£Ö¹¼Æʱ£¬¶Á³öÕâ¶Îʱ¼ät£¬Ëã³öµ¥°ÚµÄÖÜÆÚ T=
£»
C£®½«Ëù²âµÃµÄlºÍT´úÈ˵¥°ÚµÄÖÜÆÚ¹«Ê½£¬Ëã³ögÌîÈ뱨¸æ²á£®
ÉÏÊö²½ÖèÖгöÏÖÒÅ©»ò´íÎóµÄ²½ÖèÓУº £¨²»ÒªÇó½øÐÐÎó²î¼ÆË㣩£®
¸ÄÕý£º £®
£¨1£©ÓÐÈçÏÂÆ÷²Ä¹©Ñ¡Óã¬Çë°ÑӦѡÓõÄÆ÷²ÄÌîÔÚºáÏßÉÏ
A£®1m³¤µÄ´ÖÉþ B£®1m³¤µÄϸÏß C£®°ë¾¶Îª1cmµÄСľÇò D£®°ë¾¶Îª1cmµÄСǦÇò E£®Ê±ÖÓ F£®Ãë±í G£®×îС¿Ì¶ÈΪmmµÄÃ×³ß H£®×îС¿Ì¶ÈΪcmµÄÃ×³ß I£®Ìú¼Ų̈ J£®¸½íÀÂëµÄÌìƽ£¬
£¨2£©Ò»Î»Í¬Ñ§Óõ¥°Ú×ö²â¶¨ÖØÁ¦¼ÓËٶȵÄʵÑ飬Ëû½«°Ú¹ÒÆðºó£¬½øÐÐÁËÈçϲ½Ö裺
A£®²â°Ú³¤l£ºÓÃÃ׳ßÁ¿³ö°ÚÏߵij¤¶È£»
B£®²âÖÜÆÚT£º½«°ÚÇòÀÆð£¬È»ºó·Å¿ª£¬ÔÚ°ÚÇòij´Îͨ¹ý×îµÍµãʱ£¬°´ÏÂÃë±í¿ªÊ¼¼Æʱ£¬Í¬Ê±½«´Ë´Îͨ¹ý×îµÍµã×÷ΪµÚ1´Î£¬½Ó×ÅÒ»Ö±Êýµ½°ÚÇòµÚ60´Îͨ¹ý×îµÍµãʱ£¬°´ÏÂÃë±íÍ£Ö¹¼Æʱ£¬¶Á³öÕâ¶Îʱ¼ät£¬Ëã³öµ¥°ÚµÄÖÜÆÚ T=
t | 60 |
C£®½«Ëù²âµÃµÄlºÍT´úÈ˵¥°ÚµÄÖÜÆÚ¹«Ê½£¬Ëã³ögÌîÈ뱨¸æ²á£®
ÉÏÊö²½ÖèÖгöÏÖÒÅ©»ò´íÎóµÄ²½ÖèÓУº
¸ÄÕý£º
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿