| 1. | The man's early life is a closed book . 那人的早年生活是个不可告人的谜。
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| 2. | Nuclear physics is a closed book to most of us . 我们大多数人对原子核物理学一窍不通。
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| 3. | For me , geology is a closed book 对我来说地质学是一门我完全不懂的学科。
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| 4. | Nuclear physics is a closed book to me 核物理学是我完全不懂的一门学科。
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| 5. | Paper i : choose 2 questions and answer in 3 hours . closed book 卷一:以三小时选答两条题目(闭卷)
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| 6. | Talbot slid his closed book into his satchel . - have i heard all 塔尔博特把他那本阖上的书,轻轻地放进书包。
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| 7. | A closed book 未揭开的秘密
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| 8. | There will be three one - hour exams . the exams will be closed book , but you may bring one 8 - 1 / 2 x 11 sheet of notes with you to the exam 共有三次、每次一小时的考试,考试时不得翻书。但考试时你可以携带一份81 / 2 11英?大小的笔记。
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