How did the fourth episode of the TV series "Myth" of Xiang Yu spend the second off? I don't have time to watch it. I want to know …

Um ... . . Yes, I did. . . He didn't lift it at first. . . Then I asked Xiang Liang for an hour's grace. . Then. . Calculate the volume and approximate weight of tripod with mathematical formula. . . Then. . . Use. . . Lever principle. . . Um ... . . ——|||

Post a picture for you to see. . . I can't cut it myself. . . You got it? That's it. . .

I want to ask, what are the majors in mathematics and physics? thank you

Find the English expressions of proper nouns and symbols in junior high school mathematics (Grade One).

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What if the reading speed is slow?

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A complete collection of junior high school mathematical formulas