According to the different model, this chapter gives respectively the definition, target and how to attain the higher Class.

针对不同的成熟度模型，本章分别给出了其对软件配置管理的定义，目标以及如何达到更高级别的配置管理。

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"When you compare the purchasing power the foreign purchasing power would be much higher than the middle-class or upper-class purchasing power in Thailand.

VOA: standard.2009.12.23

So they would have local, sort of higher class, local elites, would bid for the right to collect local taxes, and so the Romans would take the highest bid.

所以他们安排当地人，算是上层阶级，本地精英，竞拍当地收税权，这样罗马总是能获得最高竞价。

耶鲁公开课 - 新约课程节选

What is missing from all this talk about tax is the fact that although the rich pay higher taxes than the poor, middle-class people actually pay a higher percentage of their income in total taxes.

CNN: Americans are not moochers

Second, they need to block higher tax rates on the so-called rich in order to prevent higher tax rates on the middle class.

FORBES: Will "Hauser's Law" Protect Us from Revenue-Hungry Politicians?

You have spoken forcefully from this podium and the President has certainly spoken forcefully about no higher taxes on the middle class.

WHITEHOUSE: Press Briefing