阅读理解。阅读下列四篇短文，从每小题后所给的A,B,C或D四个选项中，选出最佳选项。
In business, there's a speed difference：It's the difference between how important a firm's leaders say speed is to their competitive (竞争的) strategy(策略)and how fast the company actually moves.The difference is important regardless of industry and company size. Companies fearful of losing their competitive advantage spend much time and money looking for ways to pick up the speed.
