It is a minimum bar for students to get over, after which they will have broader scope to choose the school they really want to attend, while schools can choose the students they want based on the unique abilities of each individual, so that advancement to higher levels becomes a process of mutual choice.
而學校也根據每一個學生的特殊表現，選擇它想要的學生，讓升學變成雙方互動的選擇。