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题目:
单选题
A±0.45mm
B±0.5mm
C±0.3mm
D±0.40mm
答案:
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在幼儿教师激发幼儿活动兴趣的方法中,幼儿教师用有趣的故事、谜语或生动的动作描述激起幼儿活动兴趣的方法属于()。
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大队警官技术训练要求掌握防护装备、侦检器材、救生器材、破拆器材和()器材的操作程序和方法。
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PARIS—An energy watchdog is alarmed about the threat to the environment from the soaring electricity needs of gadgets like MP3 players, mobile phones and flat screen TVs. In a report today, the Paris-based International Energy Agency estimates new electronic gadgets will triple their energy consumption by 2030 to 1 700 terawatt(太瓦)hours, the equivalent of todays home electricity consumption of the United States and Japan combined. The world would have to build around 200 new nuclear power plants just to power all the TVs, IPods, PCs and other home electronics expected to be plugged in by 2030, when the global electric bill to power them will rise to $ 200 billion a year, the IEA said. Consumer electronics is "the fastest growing area and its the area with the least amount of policies in place" to control energy efficiency, said Paul Waide, a senior policy analyst at the IEA. Electronic gadgets already account for about 15 percent of household electric consumption, a share that is rising rapidly as the number of these gadgets multiplies. Last year, the world spent $80 billion on electricity to power all these household electronics, the IEA said. Most of the increase in consumer electronics will be in developing countries, where economic growth is fastest and ownership rates of gadgets is the lowest, Waide said. "This will jeopardize efforts to increase energy security and reduce the emission of greenhouse gases," blamed for global warming, the agency said. Existing technologies could cut down gadgets energy consumption by more than 30 percent at no cost or by more than 50 percent at a small cost, the IEA estimates, meaning total greenhouse gas emissions from households electronic gadgets could be held stable at around 500 million tons of CO2 per year.The energy consumption of new electronic gadgets at present______.A.is nearly 1 700 terawatt hoursB.is nearly 600 terawatt hoursC.equals to the home electricity consumption of the United StatesD.is greater than the home electricity consumption of Japan
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变压器冲击试验要求:新安装的应冲击()次,大修后更换绕组的应冲击()次。
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正确的渗漉方法为()
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董事会和高级管理层负责制定商业银行最高级别的战略规划,成为商业银行未来发展的行动指南。()
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简述高等学校教师的基本素养
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多发性骨髓瘤引起的骨骼破坏属于()
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能调节人体血量分布的脏是()
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农行网上支付后台管理系统“管理一级分行操作员”功能中,哪些要素不能被修改?()