Probable reasons for frequency differences of different speech acts in commercial advertising slogans are also explored.

因此，与断言言语行为和承诺言语行为相关的商业广告标题语较其他标题语出现的频率更高。

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Based on the 11 major commercial Banks in China 2004-2009 total factor productivity (TFP) calculations, this paper analyzed the trends of TFP and the convergence of TFP differences among the Banks.

本文通过对我国11家主要商业银行2004 - 2009年全要素生产率的测算，分析了其全要素生产率的变化趋势以及各银行全要素生产率差异的收敛性。

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Also, considerable differences exist in composition, doses and biological activity of the commercial preparations available.

CNN: Could I become dependent on probiotics?

The machine the team has built uses much the same technology as found in commercial microwaves - but with some important differences, according to Mr Stull.

BBC: Bread that lasts for 60 days could cut food waste