// It is a promise that, when resolves, indicates that
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2026年，高等教育正经历深刻的“ROI（投资回报率）”审查。面对高昂的学费和瞬息万变的职场，传统的长学制、重理论模式正向灵活、就业导向的模式转型 [50, 51]。
class DatabaseStorage(Storage):