搜题
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第1题

Which bus should I take first? A、I’m sorry to hear that. B、No, thank you. C、Bus 12 over there. D、That’s right
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第2题

[填空题,25分] 微分方程y=e的通解是_____.
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第3题

[填空题,25分] 微分方程y=ycos=的0通解是______．
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第4题

What time does the train for London leave? A、10:30 on Track 2. B、Go on. C、Yes. One is British, and the other is Chine
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