某商业大厦的钟楼上装有一个电子报时钟,在钟面的边界上,每一分钟的刻度处都装有一只小彩灯,.从21点30分开始,再过五分12秒,时针与分针的夹角内有多少只小彩灯
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/07 13:59:50
![某商业大厦的钟楼上装有一个电子报时钟,在钟面的边界上,每一分钟的刻度处都装有一只小彩灯,.从21点30分开始,再过五分12秒,时针与分针的夹角内有多少只小彩灯](/uploads/image/z/11529339-51-9.jpg?t=%E6%9F%90%E5%95%86%E4%B8%9A%E5%A4%A7%E5%8E%A6%E7%9A%84%E9%92%9F%E6%A5%BC%E4%B8%8A%E8%A3%85%E6%9C%89%E4%B8%80%E4%B8%AA%E7%94%B5%E5%AD%90%E6%8A%A5%E6%97%B6%E9%92%9F%2C%E5%9C%A8%E9%92%9F%E9%9D%A2%E7%9A%84%E8%BE%B9%E7%95%8C%E4%B8%8A%2C%E6%AF%8F%E4%B8%80%E5%88%86%E9%92%9F%E7%9A%84%E5%88%BB%E5%BA%A6%E5%A4%84%E9%83%BD%E8%A3%85%E6%9C%89%E4%B8%80%E5%8F%AA%E5%B0%8F%E5%BD%A9%E7%81%AF%2C.%E4%BB%8E21%E7%82%B930%E5%88%86%E5%BC%80%E5%A7%8B%2C%E5%86%8D%E8%BF%87%E4%BA%94%E5%88%8612%E7%A7%92%2C%E6%97%B6%E9%92%88%E4%B8%8E%E5%88%86%E9%92%88%E7%9A%84%E5%A4%B9%E8%A7%92%E5%86%85%E6%9C%89%E5%A4%9A%E5%B0%91%E5%8F%AA%E5%B0%8F%E5%BD%A9%E7%81%AF)
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