Ad hoc problems usually require careful reading and usually yield to an attack that revolves around carefully sequencing the instructions given in the problem.

杂项题通常需要仔细阅读题目并且需要在题目之间反复考虑，并把他们逐一运用到程序中。

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The one thing that seems to be clear from the crisis in the us is that the AD hoc policy responses deployed thus far have not worked to resolve the problems or decrease market uncertainty.

有一点很明显，危机中的美国特设政策反应部署迄今还没有起到作用以解决问题或减少市场的不确定性。

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At the second of these AD hoc conferences, as at the first, there were two chief problems the pyrogenicity of the preparations then available, and their instability.

在专案会议的第二次会议，首先，这里有两个主要问题，一个是致热原性的准备工作及可用性，它们的不稳定性。

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