题目内容
在战争中，（）是精神因素的第一特性。
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不定和偶然也是构成战争氛围的要素之一。（）
勇气有两种表现：一种是面对个人危险的勇气；一种是承担责任的勇气。（）
战争中需要激励、名誉，越多越好！
1. A) The self-driving system was faulty.B) The car was moving at a fast speed.C) The man in the car was absent-mindedD) The test driver made a wrong judgement.2. A) They have generally done quite well.B) They have caused several severe crashes.C) They have posed a threat to other drivers.D) They have done better than conventional cars.[音频]
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