What's wrong with Vietnamese math problems, doctor? I have no choice but to learn to be a tyrant and admit defeat.

Is this the problem?

? Ruan Yujiang is studying for a Ph.D. in Vietnam Institute of Educational Sciences. He used a computer program to find out all possible combinations. As a result, 74 A4 sheets were printed. She said that the computer can easily work out the answer, "but the human brain is certainly not easy." One of the correct number combinations is 1, 1, 1, 1, 1, 3,7,9, 1.

Senior three is slow to do math problems.

20 14 What are the postgraduate subjects (initial examination and second examination) of School of Finance and Statistics, Hunan University? Master and master, thank you.

I've been thinking about the math problem of two-color ball for a long time. . . . . . .

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