Can you imagine?今年美国“高考”中有42%的学生“挂”了全科。美国高中毕业生在ACT大学入学考试（与SAT同为“美国高考”）中创下30多年来最低成绩
A sidenote in U.S. high schools - AP means "advanced placement." AP are college-level courses taught in high school and credits these courses as college units even before they get into college. Not everyone can enroll in them-
90%-100% A
80%-89% B
70%-79% C
60%-69% D etc.
if you take advanced placement classes, be it's a higher level of
difficulty, an A = 5 meaning if you
get a B in an AP class, it scores as an A on your gpa
Fig.5:“MIT宣布将重新要求申请入学的毕业生提供SAT/ACT（标准考试）成绩。” 理工科最racist了
美国有3.3亿人，有高中毕业生130万多参加ACT。
中国有14亿人，高考人数有1000万多。
美国人的高中生比例有点低。
