甲、乙、丙三个旅行者同时住进一家旅店。早上出门时,甲带了一把伞,乙拿了一根拐杖,丙则什么也没有拿。晚上归来时,拿伞的甲淋得满身是水,拿拐杖的乙跌得满身是伤,丙却安然无恙。于是甲、乙很纳闷,问丙:“你怎么会没事呢?”丙没有回答,而是问拿伞的甲:“你为什么会淋湿而没有被摔伤呢?” Three travelers A, B, and C live in a hotel at the same time. When he went out in the morning, A brought an umbrella, B took a crutch, and C took nothing. When he returned at night, the armor of the umbrella was soaked in water, and B, the walking stick, fell to his full extent. C was safe. Then A and B were puzzled. C: “How could you be okay?” C did not answer, but asked A who had the umbrella: “Why did you get wet without being injured?”