20世纪60年代的一次记者招待会上,有一位西方记者突然问当时的外交部长陈毅:“中国最近打下了美国U-2型高空侦察机。请问,用的是什么武器?是导弹吗?”按常规,对于这种涉及国家军事机密的问题,完全可以用“无可奉告”这一外交辞令来回答,但 At a press conference in the 1960s, a Western reporter suddenly asked Chen Yi, then foreign minister: “China recently laid down the U-2 reconnaissance aircraft of the United States. Excuse me, what kind of weapon is it in use? Is it a missile?” As a matter of routine, the question of such military secrets involving the state can be answered entirely in the diplomatic language of “no comment”