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How Grading Teachers Suddenly Change Their Moods
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“Everlasting” wrong-answer collections are a total lack of responsibility toward students!
What’s it like when a question you guessed right by chance shows up as a wrong answer on the Gaokao?
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Masters clash, every move is deadly.
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Four Ways to Write 1/2
What is an imaginary number? Me: ???
“When the sound of the drowning sounded, mathematics came on the scene”
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Using Tom and Jerry to open high school mathematics
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