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| 抛币决定法 | |||
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| 掷币猜先; 抛币; 掷硬币; 掷币猜先; 抛币选边 | |||
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coin tossing : 5 phrases in 3 subjects |
| Cryptography | 1 |
| Securities | 2 |
| Sports | 2 |
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