下面是我在本文的英文版贴出的地方加的提示，同样适用于这里：

来源: 慕容青草 于 2022-03-30 08:03:44 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (541 bytes)
回答: 光速悖论 由 慕容青草 于 2022-03-28 13:42:27

A courtesy reminder I have been often surprised by how poorly professionals read very short essays....so as a courtesy reminder for anyone who would come to comment: Please answer the question whether the laser beam would hit the hole and the beam A or B at the same time as a proof that you do have the ability to understand this short essay.....

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