The difference between A card and B card is that the order of questions is different. A card is horizontal, which is basically the same as the answer sheet used for training. Card B is vertical, so candidates should pay special attention not to fill in according to their usual habits, especially to prevent the wrong position of the title number when filling in 8 cards.

In order to prevent candidates from cheating on the spot, the answer cards for large-scale exams such as college entrance examination generally use AB answer cards, namely A answer card and B answer card.

During the examination, 30 students were arranged in an examination room, which was divided into four rows with 7, 7, 8 and 8 students in each row, numbered S-shaped 1~30. Odd-numbered students use A cards and even-numbered students use B cards, so that students who get A cards are surrounded by B cards, which largely avoids the phenomenon that candidates cheat on the spot.

Extended data:

Matters needing attention in college entrance examination

1. The questions are all answered on the answer sheet. After getting the answer sheet, candidates should carefully read the precautions on the answer sheet; Candidates are required to fill in the name, admission ticket number and seat number with 0.5mm black ink pen in the specified area on the answer sheet, and fill in the seat number with 2B pencil in the upper left corner on the back of the answer sheet.

2. Keep the answer sheet clean, not folded or torn. Any answer sheet that is missing, wrongly filled or illegible will affect the marking results, and the responsibility will be borne by the candidates themselves.

Candidates are not allowed to make any marks on the answer sheet. It is forbidden to scribble and mark around the image anchor point (black square) on the answer sheet.