099 哪个轮胎破了? Which tire was flat?

A final exam was in session at a university. Toward the end of the exam three students rushed to the classroom. They explained to the professor that the reason why they were late was that the car they shared got a flat tire. The professor agreed to let them take a make-up examination. But,there was only one problem on the exam paper: "Which tire was flat on the car you shared" As a result,three students had answers different from each other…

某大学正在举 行 期 末 考 试,快 结 束 的 时 候,有 3 个 学 生 匆 匆 忙 忙地跑进教室。他们3人向教授解释,因为他们合坐的汽车的一个轮胎破了,所以才会迟到。教授答应让他们补考,可是试卷上只有一道题目:"你们坐的那辆汽车,哪个轮胎破了?"结果,3个学生的答案互不相同……

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