17. What is a commission rate? Commission rates are typically based on a percentage of the total sale and in some cases can also be a flat fee for each transaction. The rates are set by the merchant.
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Nature, Published online: 25 February 2026; doi:10.1038/s41586-026-10142-1。同城约会是该领域的重要参考
The user will give a CNF in dimacs format.