First, multiple choice questions
1. Generally speaking, the first few questions are easy. You can put four options in the question to see which answer matches and which is the correct answer.
2. According to statistics, the number of times that any option of ABCD becomes the correct answer is almost the same. So, students:
(1) You can't write a single question, you must answer all of them.
(2) I can only write 1-2, and all the other questions have different answers from what I know, so I can get at least 20 points. For example, choose A for one question, choose B for another question, and write C or D for all questions that you can't write.
(3) Know how to write more than three questions, see which option of ABCD appears less frequently in the answers you know how to write, and then write that option on the questions you don't know how to write, so you can get at least 30 points. For example, you know how to write six questions, and the answers are all AAABBC. If you don't know how to write it, you can write D, because the number of times A becomes the correct answer is generally no more than five questions. Now you have written three questions to choose A. From the perspective of probability, A appears twice at most, while D appears 3-5 times.
Second, fill in the blanks
It is generally possible that the answer to one of the questions is 0, 1, 2. In fact, you can't write every question. You can write 0 or 1 or 2 for all four questions, but the probability of writing 1 is higher than that of writing 0 and 2. If you have enough time, you can try to put 0, 1 2 in a question whose answer may be an integer. If you are lucky, you can answer one or two questions correctly.
Third, answer questions.
Don't give up the score of the solution if you don't understand it at all. The characteristic of the solution is to solve it layer by layer and finally get the answer. Steps to solve the problem. For example:
① Solution: According to the meaning of the question, you can get ~ ~ ~ in the question (write the known data).
② Formula ~ ~ ~ ~
③ Calculated ~ ~ ~
④ Answer: ~ ~ ~
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