js打开飞行模式_什么是飞行模式？ 它有什么作用？什么时候应该打开它？

js打开飞行模式 If you've flown on an airplane in the last decade and you have a smart phone, you've likely had to put that phone in airplane mode before the plane takes off. 如果您在过去的十年中乘坐过飞机，并且拥有一部智能手机，那么您可能

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