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For what purpose were radio transmitter used？
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甲公司与乙公司签订买卖合同，合同约定甲公司先交货，交货前夕，甲公司派人调查乙公司的履约能力，有确切证据证明乙公司负债累累，根本不能按时付款。于是，甲公司暂时不向乙公司交货。甲公司的行为是()。
Predictions of many robots in industry have yet come true. For ten years or more, manufacturers of big robots have explained how their machines can make industry more competitive and productive. The maker for 【21】______ robots is oversupplied now, and the driving force of the robotics (机器人学) revolution is 【22】______ to be with makers of machines that handle a few kilos at most.
"Heavy-robot manufacturers are in some difficulty 【23】______ finding customers. They are offering big 【24】______ just to get in the door. There has been a 【25】______ growth everywhere in the numbers of robots, so we admit we are either deceiving 【26】______ or that the market is slowly growing. "said John Reekie, chairman of Colen Robotics. "The following things must happen 【27】______ the robotics revolution to occur. We must achieve widespread robot literacy. 【28】______ there has been a computer 【29】______ program, there must be a robot literacy program. 【30】______ , some kind of artificial intelligence needs to be 【31】______ ."
Colen makes educational robots and machine tools. It is small 【32】______ with companies like ASEA or Fujitsu Fanuc. But Colen with others in departments in universities such as Surrey, Manchester, and Durham possess an advantage 【33】______ the giants. The big companies sell very expensive 【34】______ , to businesses with expert knowledge in automation. The 【35】______ companies make robots for teaching people, and now they have realized that there is a need for small, 【36】______ robots that they can meet.
The little companies either bring their educational machines 【37】______ an industrial standard or design from the start. One technique that they all adopt is to choose 【38】______ components where possible. The major cost of making 【39】______ their models is the electronics, which will fall in price. There is 【40】______ scope for reductions in mechanical costs. The use of standard parts, which are easily replaced, should give these robots a mechanical life of something in the order of five years.
【21】
It is not often realized that women held a high place in southern European societies in the 10th and 11th centuries. As a wife, the woman was protected by the setting up of a dowry or decimum. Admittedly, the purpose of this was to protect her against the risk of desertion, but in reality its function in the social and family life of the time was much more important. The decimum was the wife's fight to receive a tenth of all her husband's property. The wife had the right to withhold consent, in all transactions the husband would make. And more than just a fight: the documents show that she enjoyed a real power of decision, equal to that of her husband. In no case do the documents indicate any degree of difference in the legal Status of hnband and Wife.
The wife shared in the management of her husband's personal property, but the opposite was not always ture. Women seemed perfectly able to defend their own inheritance against husbands who tried to exceed their rights; and on occasion they showed a fine fighting spirit. A case in point is that of Mafia Vivas, a Catalan woman of Barcelona. Having agreed with her husband Miro to sell a field she had inherited, for the needs of the household, she insisted on compensation. None being offered, she succeeded in dragging her husband to the scribe to have a contract duly drawn up assigning her a piece of land from Miro's personal inheritance. The unfortunate husband was obliged to agree, as the contract says, "for the sake of peace". Either through the dowry or through being hot-tempered, the Catalan wife knew how to win herself, within the context of the family, a powerful economic position.
A decimum was ______.
某工程竣工验收合格后第8年内，部分梁板发生不同程度的断裂，经有相应资质的质量鉴定机构鉴定，确认断裂原因为混凝土施工保养不当致其强度不符合设计要求，则该质量缺陷应由()。
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