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有机垃圾是指变质食品和()等。
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阅读材料,回答题。 The New Technology ApplicationOn a more mundane level, third-generation mobile telephones, despite all the delays and the billions squandered on 3G licenses by telecom firms, are still expected to offer consumers high-speed, always on mobile internet access, complete with video, in the next few years.Rapidly proliferating "WiFi" networks already offer wireless access on a local basis. Tiny tracking chips called radio-frequency identification devices are being used as pet passports.Soon they will be small, powerful and cheap enough to be implanted into everything form humans to milkcartons recording and transmitting real-time medical data, or serving as a form of inventory control.Sensors of every kind, including video cameras, should also become much smaller and cheaper.Forrester Research, a technology consultancy, predicts that 14 billion such devices will be connected to the internet by 2005.How rapidly such new technology is introduced will depend on a number of factors the state of the economy, the supply of investment capital and the appetite of consumers for new products or services ! Fortunes will be made and lost many times over.But whatever happens, the power of computing and communications look set to continue to grow, and its price to fall, at a steady rate for the next few decades.That will make it possible, at least in rich countries, to record most human interactions, wherever and whenever they take place, and to store and analyze this ocean of data at low cost.For the sake of argument, this survey will assume that we are heading towards a networked society of ubiquitous, mobile Communication capable of constant monitoring.Whether this arrives in 20,30 or 40 years does not really matter.The point is that the destination seems not merely possible, but probable, so it is not toosoon to ask: What do we want this technology to do?The internet has already thrown up a host of legal and political conundrums, but, these are only a small foretaste of the dilemmas about privacy, security, intellectual property and the nature of government itself that will have to be faced over the coming decades.The debate has already begun. This survey will outline some of main issues, and speculate on the way they are likely to go. Radio-frequency identification devices__________.
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下述描述中哪一项是正确的()。
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咳嗽与咳痰中,下列哪项是错误的()。
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吊重运行时,如重物有游摆现象,可逆着重物的游摆方向顺势加速跟车,是重物消除游摆现象。()
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信号在随参信道中传输时,产生频率弥散的主要原因是()。
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为什么工业汽轮机有调节级和压力级之分?
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甲有一条驳壳船租与乙进行海上运输,租期3年。双方签订了书面合同,乙一次性向甲交付租金50万元。租赁的第二年,甲因资金紧张将该船卖与丙,双方签订了买卖合同,价格500万元。约定在乙的租期届满前,丙付清全部款项。因甲无法现实交付,双方约定租期届满,由丙向乙行使返还请求权,并由甲通知乙。合同签订后10日内,甲办理了该船的过户登记。丙买得该船后,因资金紧张向丁借款250万元,丙以该船进行抵押,但未办理登记。后丙向戊借款250万元,丙通知乙该船质押于戊。后丙又将该船卖给庚,并通知乙将该船交给庚,且办理了过户登记。租赁期间第二年届满时,该船遇不可抗力灭失(该船未保险)而引起纠纷,请回答下列问题:
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写出三种最易井漏的岩层?
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川芎茶调散的药物有()