在哪个项目生命期的阶段，成本和资源投入最高？
In which phase of the project life cycle, are cost and staffing levels high?
图书馆信息资源数字化需要资金的高投入，应当节约成本。
Library information resource digitization projects need high investment and also require cost saving.
图书馆信息资源数字化需要资金的高投入，应当节约成本。
Library information resource digitization projects need high investment and also require cost saving.
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