1990年6月大学英语四级考试阅读附试题和答案(2),标签：大学英语四级真题,大学英语四级试题,http://www.dxs56.com
　　B) At dawn on July 16, 1945
　　C) Immediately after the test
　　D) Several weeks after the test（D）
　　39. After the first atomic bomb explosion, everybody agreed that ________.
　　A) it was wise to choose Alamogordo as the test site
　　B) man had entered the age of nuclear warfare
　　C) it was not wise to use such a powerful weapon
　　D) it was not possible to keep the technology of making atomic bombs secret（B）
　　40. The tone of this passage is one of ________.
　　A) anxiety
　　B) satisfaction
　　C) encouragement
　　D) fear（B）

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