| 摘要 |
A data card for facilitating a transaction, including a card body having a front surface and a back surface, a first data storage section storing a first set of data, a second data storage section storing a second set of data, a third data storage section storing a third set of data, and a fourth data storage section storing a fourth set of data. At least two of the first data storage section, the second data storage section, the third data storage section, and the fourth data storage section store different data. Each of the data storage sections is operable for facilitating the same transaction.
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