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duycanlht
1 năm trước
Phần I. Trắc nghiệm (5,0 điểm) Chọn đáp án đúng Câu 1. Phát biểu nào sau đây là đúng A. Mọi số tự nhiên đều là số nguyên. B. Tập hợp Z gồm số nguyên âm và số nguyên dương. C. b là số nguyên lớn hơn - 1 thì b là số nguyên dương. D. Bất kì số tự nhiên nào cũng lớn hơn mọi số nguyên âm.
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