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number1xu(½ð±Ò+2): 2010-03-10 07:59
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Òì¹¹Ìå1ºÍ2µÄÌ¿Ô×Ó´øÕýµç,Ö÷ÒªÊÇÒòΪÔÚÕâÁ½¸ö½á¹¹ÖÐÓÐ2¸öÌ¿Ô×ÓÀëÆäËüÔ×ӵľàÀë±È½ÏÔ¶,Õâ2¸öÌ¿Ô×ÓÓëÆäËüÔ×ÓµÄÏ໥×÷ÓÿÉÒÔºöÂÔ. the carbon atoms in isomers 1 and 2 are positively charged because of its negligible interactions with other atoms that are all positioned in a rather far distance. |
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