In the college entrance examination, multiple-choice questions (objective questions) are all marked directly by the computer, that is, the computer reads the answer sheet, and then automatically calculates the scores obtained from the multiple-choice questions according to the candidates' cards.

The teacher just fills in the blanks and fills in the big questions. After scanning the test paper, the teacher also uses the computer to read it. He can only see the questions he has read, but can't see the whole test paper. Therefore, even teachers can't see the multiple-choice answers checked by candidates on the answer sheet.

To sum up, if you don't apply for a card, you won't get points if you choose this part, whether it's math or other subjects.