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本刊１９９７年第１１期发表的全国高中学生化学竞赛１９９７年初赛试题分析中的第五题的答案中有关异构体的数目有误，在竞赛后许多人来函指出了这处错误，现将浙江温岭中学陈才 老师的来稿摘录登载如下，以纠正错误。我们感谢所有来信指出错误的老师和同学。竞赛负责人对竞赛中答对而被错判的同学深表同情，对造成的不可弥补的损失深感遗憾，并表示一定要吸取教训，今后要更严格审题，避免发生类似的错误。##6化学奥林匹克
The number of isomers in the answer to Question 5 of the National High School Students Chemistry Contest 1997 Preliminary Test Analysis in 1997 was incorrect. A summary of the manuscripts submitted by Professor Chen Cai from Wenling High School in Zhejiang Province is listed below to correct the mistakes. We thank all the teachers and students who wrote the letter for pointing out the wrong ones. The contest leaders deeply sympathized with the students who had been wrongly sentenced in the competition and deeply regretted the irreparable losses they caused. They also said that they must learn the lesson and make stricter audits in the future to avoid similar mistakes. ## 6 Chemistry Olympiad