ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Í¼¼×ÊÇijζȱ¨¾¯Æ÷µÄÔÀíͼ£¬×èÖµ²»¼ÆµÄ±¨¾¯Æ÷ÔÚµçÁ÷´ïµ½Ä³Ò»ÖµÊ±¿ªÊ¼±¨¾¯£¬³¬¹ý10mAʱ½«Ë𻵣»ÈÈÃôµç×èR1µÄ×èÖµËæζȱ仯¹ØϵÈçͼÒÒËùʾ¡£»¬¶¯±ä×èÆ÷µÄ¹æ¸ñΪ¡°200¦¸ 2A¡±£¬»¬¶¯±ä×èÆ÷½ÓÈ˵ç·µÄ×èֵΪ100¦¸Ê±£¬´Ë±¨¾¯Æ÷ÔÚζÈΪ37¡æʱ¿ªÊ¼±¨¾¯¡£ÔòÏÂÁÐÑ¡ÏîÕýÈ·µÄÊÇ£¨ £©
A.±¨¾¯Æ÷¿ªÊ¼±¨¾¯Ê±µç·µçÁ÷×îСֵΪ4mA
B.±¨¾¯Æ÷¿ªÊ¼±¨¾¯Ê±µç·µÄ×ܹ¦ÂÊΪ0.015W
C.½«PÏò×óÒÆ£¬¿ÉÌá¸ß¸Ãµç·¿ªÊ¼±¨¾¯Ê±µÄζÈ
D.ÀûÓô˵ç·£¬²»Äܽ«¿ªÊ¼±¨¾¯Ê±µÄζÈÉ趨Ϊ42¡ãC
¡¾´ð°¸¡¿B
¡¾½âÎö¡¿
A£®¸ù¾ÝÒÒͼͼÏñ¿ÉÒÔÖªµÀµ±Î¶ÈΪ37¡æʱ£¬R1×èֵΪ500¦¸£¬´ËʱµçÁ÷
¹ÊA´íÎó£»
B£®±¨¾¯Ê±µç·×ܹ¦ÂÊΪ
¹ÊBÕýÈ·£»
C£®±¨¾¯Ê±µçÁ÷²»±ä£¬ËùÒÔ×ܵç×èΪ600¦¸²»±ä£¬µ±PÏò×óÒÆʱ»¬¶¯±ä×èÆ÷µç×è±äС£¬ËùÒÔR1½«±ä´ó£¬ÓÉÒÒͼ¿ÉÖª£¬±¨¾¯Î¶Ƚ«±äµÍ£¬¹ÊC´íÎó£»
D£®µ±Î¶ÈΪ42¡æʱ£¬R1Ϊ400¦¸£¬ËùÒÔ»¬¶¯±ä×èÆ÷×èֵΪ200¦¸£¬¿ÉÒÔ´ïµ½£¬¹ÊD´íÎó¡£
¹ÊÑ¡B¡£
¡¾ÌâÄ¿¡¿ÔÚÉç»áʵ¼ù»î¶¯ÖУ¬Ð¡ÃÎѧϰС×éµÄͬѧ¶ÔijСÇøÖܱߵÄÎÛȾÇé¿ö×öÁ˵÷²é£¬²¢µ½»·±£¼à²â²¿ÃÅ»ñÈ¡Á˸ÃСÇøÄÚij¼à²âÕ¾¼Ç¼µÄÊý¾Ý(Ò»¸ö¿ÕÆø¼à²âÒÇÿ¸ôÁ½Ð¡Ê±¼Ç¼µÄ PM2. 5 ²ÎÊý)£¬ÈçϱíËùʾ¡£
ʱ¼ä | 6:00 | 8:00 | 10:00 | 12:00 | 14:00 | 16:00 | 18:00 | 20:00 | 22:00 |
PM2.5/£¨¦Ìg/m3£© | 40 | 80 | 100 | 140 | 110 | 120 | 140 | 90 | 80 |
(1)ÇëÄã¸ù¾Ý±íÖеÄÊý¾Ý£¬ÔÚͼÖлæÖƳö PM2. 5 ²ÎÊýËæʱ¼ä±ä»¯µÄͼÏó£»
£¨________£©
(2)·ÖÎöͼÏ󣬿ÉÒÔ»ñµÃµÄÐÅÏ¢ÓÐ ________________ (д³öÒ»Ìõ¼´¿É)£»
(3)ÇëÄã·ÖÎöÔì³É¸ÃÇøÓò´óÆøÎÛȾµÄÔÒò¿ÉÄÜÊÇ ________________¡£(д³öÒ»Ìõ¼´¿É)¡£
¡¾ÌâÄ¿¡¿´º½ÚÆڼ䣬СÃ÷ÓëºÜ¶àÖйúÍøÓÑÒ»Ñù£¬¶Ô»ðÉñɽ¡¢À×Éñɽ½¨Éè½øÐС°ÔƼ๤¡±£¬Ï¸ÐĵÄСÃ÷·¢ÏÖ¹¤µØ·±ßµÄÁ¢Öù¶¼ÊÇ¿ÕÐÄÔ²Öù¶ø²»ÊÇ¿ÕÐÄ·½Öù£¬Èçͼ¼×¡£Ð¡Ã÷²ÂÏë¿ÉÄÜÊÇ¿ÕÐÄÔ²Öù±È¿ÕÐÄ·½ÖùµÄ¿¹Ñ¹ÄÜÁ¦Ç¿¡£Îª´ËÉè¼ÆÁËÏÂÃæµÄ̽¾¿»î¶¯£ºÈçͼÒÒËùʾ£¬·Ö±ðÔÚÔ²Ö½¹ÜºÍ·½Ö½¹ÜÉÏÃæÊ©¼ÓѹÁ¦£¬¹Û²ì²¢¼Ç¼ֽ¹ÜµÄÐαäÇé¿ö£¬ÈçϱíËùʾ£º
ѹÁ¦/N | 3 | 6 | 9 | 12 |
Ô²Ö½¹Ü | ÍêºÃ | ÍêºÃ | ÍêºÃ | ÍêºÃ |
·½Ö½¹Ü | ÍêºÃ | ÍêºÃ | ÑÏÖرñ | ÑÏÖرñ |
(1)ΪÁËÖ»ÈÃA¡¢BÁ½¸öֱͲµÄÐÎ×´²»Í¬£¬¶øÆäËûÌõ¼þ¾ùÏàͬ£¬ÇëÄãд³öÒÒͼÖÐA¡¢BÁ½¸öֱͲµÄÖÆ×÷·½·¨£º _________________________£»
(2)·ÖÎö±í¸ñ£¬Ð¡Ã÷¾¹ý¶à´ÎʵÑéÑéÖ¤ÁË×Ô¼ºµÄ²ÂÏë___________ (Ìî¡°ÕýÈ·¡±»ò¡°´íÎó¡±) £»
(3)ÇëÄãд³öÉú»îÖÐÓ¦Óñ¾ÊµÑé½áÂÛµÄÒ»¸öʵÀý£º_______________¡£