If you read the post that I am replying now..

If you are the rank 1 student

Do you introduce your textbook easily to rank 2 students or rank 7th students?


If your answer is seventh; What if that 7th is friends with the second student? And the second student sent him/her like an agent to get information from you? 🤔 Now, in this situation what behavior do you have?

How about the good trial test? How relate to the optimal distribution of easy and difficult questions on that trial test? How relate to whether that good trial test publishes the key answer/description answer after the test or not?