但由于采访名人的目的性和时间限制性很强，所以它又是采访的难点。

But as for the purpose and the time limit of the interview on famous person is strong, it's also difficult to gather the news.

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由于实时任务有时间限制性的要求，因此为了防止系统出错而导致的任务失败，在实时任务调度算法中还必须考虑容错问题。

Because the time constraint of the real-time tasks, the scheduling algorithm must incorporate the fault-tolerance technique, for preventing from the task failure under the condition of system faults.

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北京就曾针对小排量汽车和卡车上路时间段和行驶区域公布过不同的限制性规定。

Beijing put varying restrictions on small cars and trucks, limiting where and when they could drive.

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