世界银行(World Bank)行长佐利克(Robert Zoellick)表示，如果各国在货币问题上不停止争吵，开始让步，经济低迷会恶化。
World Bank President Robert Zoellick says if nations do not stop bickering and start compromising on currency issues, the economic downturn could get far worse.
在作业加工时间简单线性恶化下，提出作业的非负开始和停止延迟恶化率，构造了满足约束条件的复合作业。
Under the simple linear deteriorating, nonnegative start and stop lag deteriorating rates are introduced so as to combine jobs and construct composite jobs satisfying precedence relations.
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