191问答库 > 手机用哪种电磁波传输信号（　　）A．红外线B．微波C．紫外线D．X射

手机用哪种电磁波传输信号（　　）A．红外线B．微波C．紫外线D．X射

2025-03-16 17:15:14
推荐回答（1个）
回答1：

手机使用的是微波传输信号，故B正确．
故选：B

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