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线程也可以称为“轻量级进程”(Lightweight Process)，它是处理器调度的对象。线程表示的是【14】中的一个控制点和一条执行途径。

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案例分析题STD总线是面向工业控制的（）位控制总线，它共有（）条信号线。它共有（）条信号线。

A. 28
B. 56
C. 60
D. 64

Why is that some people have a seemingly natural ability to get attention and respect when they speak What is it that makes others listen and pay attention to their words It isn’t necessarily a question of status, or the content of what they say. Such people often don’t speak "Oxford" English, express themselves using perfect grammatical constructions, or even use appropriate words. What they do have is resonance (共鸣). Such people tend to have beautiful, rich voices and to use the lower end of their voice range (范围). Observe and listen to others. People who speak quickly and breathily in a high-pitched (声调高的) voice do not appear as assertive as those who speak more slowly using deeper voice tones. The lower pitch conveys control and confidence. What is the better way to deliver a speech It is better to speak ______ and use deeper voice tones.

The United States has most of what every country would like to have coal and (11) and other minerals, cereals (wheat. barley, maize), beef, cattle, fruit plantations of all kinds, as well as (12) Yet, as in most countries, there is unemployment and the fear of unemployment, and few people like (13) unemployed more than the Americans. They are paid well, even in quite simple jobs, and their taxes are low, so they do not often come out on (14) for unimportant reasons. Union officials in the factories are employed not only to make sure the workers get (15) treatment, but also to see that they work as well as they can.

When it became dark in winter, the old man had the fire (burn) ______ all night long.