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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。
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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.
李某是天津甲公司供销科长，任职期间办理了甲公司与上海乙公司之间的供销与加工等多方面的业务。2004年3月，李某辞职后开办了丁公司，丁公司的办公房内存有甲公司一批设备。2004年4月1日，李某对乙公司讲有—批设备委托乙公司以其名义销售，销售价格确定为36万元人民币，并说明乙公司如同意，应在一个星期之内给予答复。乙公司表示同意。同时李某将一份载有上述内容、由李某自己签字、以甲公司为委托方的合同邮寄给乙公司。乙公司4月4日收到该合同文本签字盖章后，于4月15日用特快专递寄给李某。李某于4月17日收到该合同文本后，于4月18日告知乙公司，该批设备由于存放的时间较长，有些部件可能有些问题，并讲明将于同日将该设备发送给乙公司。乙公司4月26日收到该批设备后，即与内公司签订了价格为30万元人民币的买卖合同，并于4月30日将该批设备交付给丙公司。因该批设备的使用说明等资料仍在李某处，丙公司收到设备后多次向乙公司催要未果，致使设备无法使用，闲置库中。6月8日，一场意外的火灾将该批设备烧坏报废。 李某以甲公司的名义与乙公司签订的合同于何时生效______
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