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sjnonline (25)

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Joined January 2018 Active 8 years ago

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sjnonline (25)in #cn • 8 years ago
为什么客机大部分是白色的
经常坐飞机的“空中飞人”们可能会有个疑问：为什么在如此讲究个性化和标新立异的今天，大部分客机的机身都是白色的呢？首先，白色飞机更安全。…
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