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letiendung1251998
2 năm trước
tìm số nguyên tố p để 2p+1 là lập phương của một số tự nhiên.
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It’s six o’clock in the evening. Many people are at home. They are having dinner. They are watching T.V. They are listening to music. But Mrs. Bich is going to the work. She’s a doctor and she works at night in the hospital. Today she’s late. The hospital is not in her neighborhood so she usually goes by car. Mrs. Bich is in her car now. She’s driving fast. She should slow down but she must be at work by six thirty. A policeman stops her. “You are driving too fast!” he says. You are going to have an accident. It’s six thirty. Mrs. Bich is not at the hospital. She’s at the police station. Her car must stay there for fourteen days. …………… 1. Mrs. Bich is a night doctor …………… 2. She goes to work by motorbike …………… 3. She is late for work …………… 4. A policeman doesn’t keep her car …………… 5. She arrives at the hospital at 6.30

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