你还可以选择收费项目，获取对信用信息、个人身份记录、社会保障号码和其他网上交易活动的更全面的监测服务。

Optional fee-based services offer more extensive monitoring of credit information, personal identity records, social security Numbers and online transactions.

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研究表明：“彩云服务”运行模式由用户需求驱动，保障机制由馆藏结构调控体系和用户信用等级制度构成；

Research shows that "Colorful Clouds Service" operation mode is driven by user's requirement, the guarantee mechanism is formed by collection structure control system and user credit rating system;

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