Why is the short message sent by my mobile phone in Chinese characters, but the other party receives a question mark? One Chinese character corresponds to a question mark. But the other party can rece

Why is the short message sent by my mobile phone in Chinese characters, but the other party receives a question mark? One Chinese character corresponds to a question mark. But the other party can receive the number. This is normal, because the mobile company stipulates that a short message has a maximum of 70 Chinese characters (punctuation is half a Chinese character), so many mobile phones send short messages with only 70 words. Even if it's a long text message, it's 70 words, and it's sent several times. I don't know if you understand.

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Why is the short message sent by my mobile phone in Chinese characters, but the other party receives a question mark? One Chinese character corresponds to a question mark. But the other party can receive the number.