在这SAT考试非强制性的政策下，以及淡化标准测验的管制，一些老美担心大学也许会降低水平、影响声誉和全面品质。
Under the SAT test-optional policy and the dropping of standardized exam mandates, some Americans worry that institutions may lower their standards and suffer a drop in reputation and overall quality.
在自然垄断产业实现有效竞争，应区分具体产业中的自然垄断性业务和竞争性业务，实行区别对待的管制政策。
Once the operations of natural monopoly and competition have been distinguished, and the government can execute different regulation policies.
在自然垄断产业实现有效竞争，应区分具体产业中的自然垄断性业务和竞争性业务，实行区别对待的管制政策。
Once the operations of natural monopoly and competition have been distinguished, and the government can execute different regulation policies.
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