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WEN Chen2026-07-10 10:56
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WEN Chen2026-07-10 10:28
How you express the real answer:9.801*10^8
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Yalc2026-07-09 15:56
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Brian2026-07-09 14:25
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WEN Chen2026-07-09 10:56
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WEN Chen2026-07-09 10:26
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MENG RU2026-07-09 09:55
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Bella2026-07-09 09:26
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Yalc2026-07-08 16:56
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Leon2026-07-08 15:26
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