◎ 题干
         you are aware of the trick used in advertisements, I don't think you are eager to buy.
[     ]
A. Unless
B. Whether
C. Once
D. Although
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“ you are aware of the trick used in advertisements, I don't think you are eager to buy.[ ]A. UnlessB. WhetherC. OnceD. Although…”主要考查了你对  【从属连词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。