由于春节期间审校的失误 ,至使本刊2 0 0 4年第 2期中的《新题征展 ( 50 )》出现两处错误 ,特此更正 .1 .河南省泌阳一中高三 ( 1 )班孙双翼同学来信指出 ,第 1 ( 3)题 ,四边形 ABCD为矩形即能满足题设条件 .原答案错在“类似又得 | a| =| b| .2 .沈阳市大东区市五中高钧老师和 Due to mistakes made during the Spring Festival review period, we made two mistakes in the “New Title Exposition (50)” in the second issue of the 2002 issue. I hereby correct it. 1. Biyang No. 1 Middle School, Henan Province (1) A letter from a classmate of BAN Sun Wing pointed out that in the first (3) question, the quadrilateral ABCD is a rectangle that satisfies the conditions of the question. The original answer is wrong in the "similar and had | a| =| b| .2. Dadong District, Shenyang City, five high Teacher and