Some assertions specify requirements and capabilities that have no wire manifestation yet are critical to proper service selection and usage (for example, privacy policy, QoS characteristics).

某些断言指定并不会在网上体现但对恰当的服务选择和使用非常关键的要求和功能（例如，隐私策略、QoS 特征）。

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It called on Catholic grammar schools to operate a policy of admitting no more than 75% of pupils on the basis of academic selection by September 2014.

BBC: Catholic bishops in call over academic selection