如果你知道这些关于网络新闻的事情，并且可以在日常生活中用到，那么你就可以控制读什么以及相信什么。

If you know these things about online news, and can use them in your everyday life, then you have the control over what to read and what to believe.

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通过使用乐观并发控制，数据库管理器在完成读操作之后可以立即释放行或页锁。

With optimistic concurrency control, the database manager releases the row or page locks immediately after a read operation.

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区别在于由谁控制读循环。

Who controls the reading loop.

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