ALZHEIMER'S  EYE TEST

Count every "F" in the following  text:  

仔細看看下面一小段英文句中，算算有幾個"F" ?

FINISHED FILES ARE THE RE 

SULT OF YEARS OF SCIENTI 

FIC STUDY COMBINED WITH 

THE EXPERIENCE OF  YEARS... 

如你第一次看過後，答案是【3】！

將來，你就會有老人痴獃的可能喔！！

哈哈哈…別緊張…開玩笑的啦！