ÌâÄ¿ÄÚÈÝ
3£®×Ô5Ô³¦³öѪÐԴ󳦸˾ú£¨EHEC£©ÒßÇ鱬·¢ÒÔÀ´£¬ÒÑÔì³É22ÈËËÀÍö£¬2700ÈËסԺÖÎÁÆ£®Ä¿Ç°³ýÁ˵¹úÍ⣬»¹ÓÐÆäËû10¸öÅ·Ã˹ú¼ÒºÍÃÀ¹úÒ²³öÏÖÁ˳¦³öѪÐԴ󳦸˾úµÄ»¼Õߣ®ÕâÖÖ¼²²¡¿ÉÄÜÊÇͨ¹ý±»¸ÐȾµÄ¡°Ñ¿Ãç²Ë¡±¶ø´«È¾µÄ£®£¨1£©±»¸ÐȾµÄ¡°Ñ¿Ãç²Ë¡±ÊǸô«È¾²¡µÄ´«²¥Ã½½é£®
£¨2£©¶Ô»¼Õߵķà±ãÒª×öÎÞº¦»¯´¦Àí£¬ÕâÔÚÔ¤·À¸Ã²¡µÄ´ëÊ©ÉÏÊôÓÚÇжϴ«²¥Í¾¾¶£®
·ÖÎö ´«È¾²¡ÊÇÖ¸Óɲ¡ÔÌåÒýÆðµÄ£¬ÄÜÔÚÈËÓëÈËÖ®¼ä¡¢ÈËÓ붯ÎïÖ®¼ä»¥ÏഫȾµÄÒ»ÖÖ¼²²¡£¬´«È¾²¡Ò»°ãÓд«È¾Ô´¡¢´«²¥Í¾¾¶ºÍÒ׸ÐÈËȺÕâÈý¸ö»ù±¾»·½Ú£¬¶ø´«È¾Ô´ÊÇÖ¸Äܹ»É¢²¥²¡ÔÌåµÄÈË»ò¶¯Î´«²¥Í¾¾¶ÊÇÖ¸²¡ÔÌåÀ뿪´«È¾Ô´µ½´ï½¡¿µÈËËù¾¹ýµÄ;¾¶£¬Ò׸ÐÈËȺÊÇÖ¸¶ÔijЩ´«È¾²¡È±·¦ÃâÒßÁ¦¶øÈÝÒ׸ÐȾ¸Ã²¡µÄÈËȺ£®
½â´ð ½â£º£¨1£©³¦³öѪÐԴ󳦸˾ú²¡ÊÇÓÉϸ¾ú¸ÐȾÁË¡°Ñ¿Ãç²Ë¡±ÒýÆðµÄ£¬ÊôÓÚÏû»¯µÀ´«È¾²¡£¬±»¸ÐȾµÄ¡°Ñ¿Ãç²Ë¡±ÊǸô«È¾²¡µÄ´«²¥Ã½½é£®
£¨2£©¶Ô»¼Õߵķà±ãÒª×öÎÞº¦»¯´¦Àí£¬ÕâÊôÓÚÔ¤·À´«È¾²¡´ëÊ©ÖеÄÇжϴ«²¥Í¾¾¶£®
¹Ê´ð°¸Îª£º£¨1£©´«²¥Ã½½é£»
£¨2£©Çжϴ«²¥Í¾¾¶£®
µãÆÀ ½â´ð´ËÀàÌâÄ¿µã¹Ø¼üÊÇÕÆÎÕ´«È¾²¡µÄÏà¹Ø֪ʶ£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
14£®ÒÑÖªºì»¨£¨R£©¶Ô°×»¨£¨r£©ÎªÏÔÐÔ£¬ÏÖÒÔ»ùÒò×é³ÉΪRrÖ²ÖêΪÕèľ£¬ÒÔ°×»¨Ö²ÖêΪ½ÓË룬ͨ¹ý¼Þ½ÓÐγɵÄÒ»ÐÂÖ²Ö꣬ÈÃÆä×Ô»¨´«·Û£¬²¢½«Ëù½áµÄÖÖ×Ó²¥ÖÖÏÂÈ¥£¬Æä×Ó´úµÄ»ùÒò×é³ÉºÍ»¨É«·Ö±ðΪ£¨¡¡¡¡£©
A£® | Rr ºì»¨ | B£® | rr °×»¨ | C£® | RR ºì»¨ | D£® | Rr¡¢rr ºì»¨¡¢°×»¨ |
11£®ÒÀ¾Ý´ï¶ûÎĵĽø»¯Ñ§Ëµ£¬ÏÂÁÐÐðÊö²»ÕýÈ·ÊÇ£¨¡¡¡¡£©
A£® | ×ÔȻѡÔñÄÜÕýÈ·½âÊÍÉúÎïµÄ¶àÑùÐÔºÍÊÊÓ¦ÐÔ | |
B£® | ÉúÎï½ø»¯µÄÄÚÔÚÒòËØÊDzúÉúÁË¿ÉÒÅ´«µÄ±äÒì | |
C£® | ³¤½ÖÐÌØÓеĵˮ¾¨Àà°×÷¢ëà»ù±¾Ãð¾ø£¬Ö÷ÒªÊÇÈËÀà¹ý¶È²¶É±µÄ½á¹û | |
D£® | ÃÍÇݾßÓÐÈñÀûµÄ๺ͼâÈñµÄצÊÇ×ÔȻѡÔñµÄ½á¹û |
18£®²»ÀûÓÚÇà´ºÆÚÉú³¤µÄÎÀÉú±£½¡Ï°¹ßÊÇ£¨¡¡¡¡£©
A£® | ½²¾¿¸öÈËÎÀÉú | B£® | ·ÏÇÞÍüʳµØÍæÍøÂçÓÎÏ· | ||
C£® | ¼ÓÇ¿ÌåÓý¶ÍÁ¶ | D£® | ºÏÀíÉÅʳ¡¢×÷Ï¢ÓйæÂÉ |
8£®ÏÂÁÐÊôÓÚÏû»¯ÏÙµÄÊÇ£¨¡¡¡¡£©
A£® | θ | B£® | ¸ÎÔà | C£® | С³¦ | D£® | ´ó³¦ |
15£®ÏÂÁÐÊôÓÚ±äζ¯ÎïµÄÊÇ£¨¡¡¡¡£©
A£® | ¼Ò¸ë | B£® | ¹· | C£® | ÇàÍÜ | D£® | ¼ÒÍà |
13£®ÏÂÁи÷ÏîÖв»ÊôÓÚ¶¯ÎïÌå×éÖ¯µÄÊÇ£¨¡¡¡¡£©
A£® | ÉÏƤ×éÖ¯ | B£® | ½áµÞ×éÖ¯ | C£® | ÓªÑø×éÖ¯ | D£® | Éñ¾×éÖ¯ |