You start out by setting up your computer (or a microprocessor-based code tutor machine) to send you Morse characters at 20 WPM and at an overall sending speed of at least 15 WPM.
你设置你的电脑(或单片机为基础的辅导机器)，发送莫尔斯字符速度是20wpm，至少15wpm的全速。
You start out by setting up your computer (or a microprocessor-based code tutor machine) to send you Morse characters at 20 WPM and at an overall sending speed of at least 15 WPM.
你设置你的电脑(或单片机为基础的辅导机器)，发送莫尔斯字符速度是20wpm，至少15wpm的全速。
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