Decision problems may be one-shot, in which case only a single decision is to be made, or repeated, in which case the computer may need to make multiple decisions.

决策程序可能是一次性的，在这种情况下仅仅需要作出单一的决定，也可能是重复的，在这种情况下计算机可能需要做出多重决定。

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But Mr Orszag believes this approach will help in two ways: it insulates tough decisions from politics, and it encourages ongoing reform rather than one-shot heroics.

ECONOMIST: Health reform in America: Signed, sealed, delivered | The