布朗以前不是这么说的，一定是被人用过这招，现在变精了。所以这个招数得及早用，等到所有ED学校都变精了，这招就不灵了。

时下芝大，哥大还都采用传统的录取时设关卡的办法：

芝大：

“This admissions plan is binding, meaning that if admitted, you commit to attending UChicago, withdrawing outstanding applications from any other school, and not applying to any additional colleges.“

 

哥大：

“If you are admitted under the Early Decision program, you are obligated to accept Columbia’s offer of admission. 

Once you accept Columbia’s offer of admission, you may not apply to any other colleges and must withdraw any applications that have already been submitted.“