The full name of AP course is Advanced Placement, and the Chinese name is American College Preparatory Course, which is suitable for high school students all over the world who plan to go to the United States for undergraduate studies. Sponsored by College Board, AP scores can not only deduct credits for students who successfully apply for American universities, but also become an important basis for American university enrollment.

The AP exam uses a 5-point system. Generally, scores above 3 points can be accepted by most universities, and will be reduced to as many as one academic year's university credits in the future. A few top universities, such as Harvard, require university credits to reach 4 or 5 points.

The score of each AP is judged according to the students' answers to multiple-choice questions and free questions. The total score is 5 points. The multiple-choice part is computer marking and grading, the free answer part is marked by university professors and experienced AP teachers, and the final score is determined by two parts;

5= excellent 4= excellent 3= qualified 2= barely qualified 1= unqualified.

AP scores 5 and 4 are equivalent to A in college scores, but in some colleges and universities, AP score 4 may be regarded as B in college scores.

In many colleges and universities, an AP score of 3 points is probably equivalent to a college score of B, but in other colleges and universities, 3 points may be equivalent to a college score of C.

Recommended AP courses generally include the following subjects:

Liberal arts courses include: English language and writing, English literature and writing, American history, American government and politics.

Science courses include calculus BC, physics C, chemistry, biology and statistics.

Engineering courses include calculus BC, physics C, chemistry, computer and statistics.

Business courses include: calculus BC, economics, statistics, psychology, calculation.