On a new empty line, a single Ctrl-D will signal EOF.

在新的一行，一个单一的退出系统将信号分解。

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Then the environmental policy will directlyinfluence the decision-making in R&D. Endogenous technology in R&D will beexogenous variables in diffusion.

这样以来扩散阶段的环境政策会直接影响到研发阶段的企业决策，在研发阶段作为内生的技术在扩散阶段成为外生技术变量。

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The coefficient curves of R&D on technical progress show oblique "W" type, but on the whole, the economic benefits generated by R&D will get better and better.

研发投入对技术进步的系数变化曲线表现出斜向上“W”型，但从整体上看研发投入所产生经济效益会变得越来越好。

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But expanding Medicaid-style price controls into Part D will not deliver the savings promised.

FORBES: Senior Citizens Will Pay Dearly For Health Care Price Controls

The next generation of 3-D will go beyond stereovision tricks and into the realm of holography.

FORBES: Adventures in the Third Dimension

The Packers D will have to prevent the big pass from Big Ben.

FORBES: Super Bowl Smack-Talk, Take Two: The Quarterbacks