你可能有点儿幽默感，或者很有判断力颇具独特观点等等一系列显示出你还挺聪明的表现。但是科学地看看，你到底有多聪明呢？真的很聪明吗？来试一试认知反射测试(CRT)，也被称为世界上最短的智商测试，只用三个问题证明你是不是个天才。
这个测试是2005年由普林斯顿大学心理学家夏恩·弗雷德里克(Shane Freerick)提出的，评估了你从容而理性地处理信息，而不是急于下结论的能力。“为了把CRT测试里这三道题答对，你必须谨慎思考你的答案，并质疑一下你的直觉。”
在你开始之前，先给你一个简短的提示：这些问题可能并不像乍看上去那么简单哦。2005年的一项研究发现，即便是美国一些最负盛名的大学(包括哈佛和耶鲁)的学生都没有把这三个问题都做对，只有17%的人获得了满分。
下面是这三个问题，想给自己增加点难度的话可以看英文版，下面有中文的。心算就够了，拿笔算有点过分了啊喂！
A bat an a ball cost $1.10 in total. The bat costs $1 more than the ball. How much oes the ball cost?
If it takes five machines five minutes to make five wigets, how long woul it take 100 machines to make 100 wigets?
In a lake, there is a patch of lily pas. Every ay, the patch oubles in size. If it takes 48 ays for the patch to cover the entire lake, how long woul it take for the patch to cover half of the lake?
充当分割线的中文版：
1、一个球拍一个球总计1.10美刀，球拍比球贵1美刀，问，球多少钱。
2、如果5台机器5分钟造了5个小零件，那么100台机器造100个小零件要多少分钟？
3、一个湖里有片睡莲莲叶，每天莲叶面积都比前一天多一倍，如果第48天的时候莲叶将把湖面占满了，那么问，第几天的时候莲叶占据湖面一半？
（太简单了哦？不要苦思冥想太久哦~）
Answers:
1、$0.05. If you guesse 10 cents, you’re not alone. However, if that were the case, the bat an ball woul cost $1.20—not $1.10. On the other han, purchasing a 5 cent ball an a bat price at $1.05 (which is $1 more expensive than 5 cents) woul total $1.10, instea.
2、Five minutes. Although you might have answere 100 minutes, the actual time is a little less than that. Since the question reveals that it woul take five minutes for one wiget machine to make one wiget, you can etermine that it woul take five minutes for 100 wiget machines to make 100 wigets.
3、47 ays. At first, your gut might tell you it woul take 24 ays. But remember: Since the area of the lake covere in lily pas oubles every ay, a patch that covers half the lake woul fully cover it in just one ay. Subtract one ay from 48 ays, an what o you get? 47 ays.
答案：
1、0.05美刀。
2、5分钟。
3、47天。
你答对了嘛？都答对可就超过了83%的哈耶普学生了哦！
