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1. Starting with the ________ that there is life on the planet Mars, the scientist went on to develop his argument. A) premise B) pretext C) foundation D) presentation 2. After several nuclear disasters, a ________ has raged over the safety of nuclear energy. A) quarrel B) suspicion C) verdict D) controversy 3. Their diplomatic principles completely laid bare their ________ for world conquest. A) admiration B) ambition C) administration D)orientation 4. The director gave me his ________ that he would double my pay if I did my job well. A) warrant B) obligation C) assurance D) certainty 5. The Christmas tree was decorated with shining ________ such as colored lights and glass balls. A) ornaments B) luxuries C) exhibits D) complements 1. A 参考译文：以火星上有生命存在这一假设开始，那位科学家继续进行论证。 A) premise 前提 B) pretext 借口 C) foundation 基础 D) presentation 陈述 2. D 参考译文：发生几次核灾难之后，关于核能安全的问题引起了一场激烈的争论。 A) quarrel 争吵 B) suspicion 怀疑 C) verdict 判决 D) controversy 争议 3. B 参考译文：他们的外交原则完全暴露了他们要征服世界的野心。 A) admiration 羡慕 B) ambition 野心 C) administration 管理 D)orientation 定向 4. C 参考译文：主任向我保证，如果我工作干得好，他就会给我双倍的工资。 A) warrant 证明 B) obligation 责任 C) assurance 确信 D) certainty 明确 5. A 参考译文：圣诞树上点缀着闪光的饰物，如彩灯和玻璃球。 A) ornament 装饰 B) luxury 奢侈的 C) exhibit 展览 D) complement 补充
