Which of the following is defined in the passage?
Đáp án A
Dịch đề bài: Từ nào sau đây được định nghĩa trong đoạn văn?
A. Bitcoin
B. Giao dịch
C. Thẻ tín dụng
D. Cơ sở dữ liệu công cộng
Ngay từ câu mở đầu ta đã thấy tác giả định nghĩa về bitcoin: “Bitcoins are a form of virtual currency. In other words, they are a type of money that does not exist in the actual world.” - Bitcoin là một hình thức tiền tệ ảo. Hay nói cách khác, chúng là một loại tiền mà không tồn tại trong thế giới thực
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Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
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