ÌâÄ¿ÄÚÈÝ
ÈçͼËùʾ£¬OµãÓÐÒ»Á£×ÓÔ´£¬ÔÚijʱ¿Ì·¢Éä´óÁ¿ÖÊÁ¿Îªm¡¢µçºÉÁ¿ÎªqµÄ´øÕýµçµÄÁ£×Ó£¬ËüÃǵÄËٶȴóСÏàµÈ¡¢Ëٶȷ½Ïò¾ùÔÚxOyƽÃæÄÚ.ÔÚÖ±Ïßx=aÓëx=2aÖ®¼ä´æÔÚ´¹Ö±ÓÚxOyƽÃæÏòÍâµÄ´Å¸ÐӦǿ¶ÈΪBµÄÔÈÇ¿´Å³¡£¬ÓëyÖáÕý·½Ïò³É60¡ã½Ç·¢ÉäµÄÁ£×ÓÇ¡ºÃ´¹Ö±Óڴų¡Óұ߽çÉä³ö.²»¼ÆÁ£×ÓµÄÖØÁ¦ºÍÁ£×Ó¼äµÄÏ໥×÷ÓÃÁ¦.¹ØÓÚÕâЩÁ£×ÓµÄÔ˶¯£¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ( )
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241503192635489.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241503192635489.jpg)
A£®Á£×ÓµÄËٶȴóСΪ![]() |
B£®Á£×ÓµÄËٶȴóСΪ![]() |
C£®ÓëyÖáÕý·½Ïò³É120¡ã½ÇÉä³öµÄÁ£×ÓÔڴų¡ÖÐÔ˶¯µÄʱ¼ä× |
D£®ÓëyÖáÕý·½Ïò³É90¡ã½ÇÉä³öµÄÁ£×ÓÔڴų¡ÖÐÔ˶¯µÄʱ¼ä× |
AC
ÊÔÌâ·ÖÎö£º»³öÁ£×ÓµÄÔ˶¯¹ì¼££¬Óɼ¸ºÎͼÐοÉÖª¹ì¼£µÄ°ë¾¶Îª
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824150319388865.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824150319451779.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824150319529766.png)
µãÆÀ£º±¾ÌâÄѶÈÖеȣ¬´¦ÀíÁ£×ÓÔÚÔÈÇ¿´Å³¡ÖеÄÔ˶¯ÎÊÌâʱ£¬ÒªÏÈ»³ö´ó¸ÅµÄÔ˶¯¹ì¼££¬°´ÕÕÕÒÔ²ÐÄÇó°ë¾¶µÄ²½Öè½øÐУ¬Á£×ÓµÄÔ˶¯Ê±¼äÓÉÔ²ÐĽǾö¶¨
![](http://thumb2018.1010pic.com/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿