题海让大学四年没有难题
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题目详情

单选题 What is the significance of the phrase 'they are bulletproof' in Article 3

A. It highlights the durability of the machines

B. It indicates the machines contain military-grade materials

C. It refers to the security of the gold inside

D. It suggests the machines cannot be hacked

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时间:2025-09-24 13:39:58

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