English Original
A blonde student sits for her university final exam, which consists mainly of true-or-false questions. She stares at the test paper for five minutes, then has an idea. She takes a coin from her purse and begins tossing it to determine her answers: heads for true, tails for false.
Within thirty minutes, she finishes while the rest of the class is still working hard. In the final minutes, however, she is seen desperately tossing the coin again, swearing and sweating.
The alarmed moderator approaches and asks what's wrong.
"I finished the exam in half an hour," she replies. "Now I'm rechecking my answers."
中文翻译
一位金发女生参加大学期末考试，试卷主要是判断题。她盯着试卷看了五分钟，然后灵机一动。她从钱包里拿出一枚硬币，开始抛硬币来决定答案：正面选“对”，反面选“错”。
三十分钟内她就做完了，而班上其他同学还在奋笔疾书。然而，在考试的最后几分钟，有人看到她又在拼命地抛硬币，嘴里骂骂咧咧，满头大汗。
警觉的监考老师走过去问她怎么了。
“我半小时就做完了，”她回答道，“现在我在复查答案。”