题海让大学四年没有难题
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题目详情

单选题 Which of the following best describes the function of the 'helium gas cylinder' mentioned in Article 2

A. It keeps the collar fashionable

B. It improves the user's visibility while cycling

C. It inflates the airbag quickly

D. It helps the collar stay dry in the rain

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时间:2025-09-24 13:39:58

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