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【简答题】
Electronic waste, or e-waste, refers to electronic products that are no longer usable. This can include TVs, cell phones and computers and other office electronics, electronic toys and videos machines. Today, the average turnover(更换)rate for a computer in the United States is every two years, according to the environmental group, Greenpeace. The group's Dai Yun says e-waste is a global problem. 'The electronic industry is one of the fastest growing industries in the world. The high speed of growth in this industry means more and more electronic products are being wasted and thrown away. If no one decides to retrieve the old products and process them properly, the electronic waste will sweep over the earth like the huge wave behind me and pollute the Earth seriously.' Greenpeace works out that 20 to 50 million tons of e-waste are produced globally each year. The components(部件)in many electronic products contain harmful chemicals that pollute ground water and the environment. At present , the U.S. has no federal law for the disposal (处理) of e-waste although a few states have e-waste recycling programs in place, but there is no law. The U.S. exports much of its e-waste to third world countries, such as India and China, where workers took apart computers for valuable parts, hoping to sell them for money. But harmful wastes expert, Dr. Bakul Rao, says that's a dangerous practice. 'From now on, the recyclers are not very educated. All they know is they can retrieve copper or gold out of it. So, the easiest way to do that is leach (过滤) it out in an acid or burn it off to retrieve it. So, that's where they don't know how to deal with it, neither do they have any health systems in place. So, their exposure is more.' 小题1:Which of the following is most likely not to be a form of e-waste? A.A mobile phone B.A radio C.An e-bike D.A table 小题2:What does the underlined word 'retrieve' (paragraph 2) probably mean? A.look into B.take apart C.get back D.throw away 小题3:What of the following statements is true according to the passage? A.The U.S. has strict national laws for dealing with e-waste. B.Third world countries import e-waste to get valuable parts, which is a safe and easy way to make money. C.The way uneducated workers deal with old computers does great harm to the environment as well as to their own health. D.More and more electronic waste is being wasted and thrown away mainly because of people's bad habits. 小题4:What is the purpose of writing the passage? A.To attract more people's attention to e-waste. B.To call on people not to throw away e-waste anywhere. C.To tell people what e-waste is and how to deal with it well. D.To warn people to break away from the electronic industry. 小题5: The next paragraph probably concerns_______. A.how to deal with e-waste properly B.how to protect ourselves from harm by e-waste C.How to slow down the development in the electronic industry D.how to make full use of e-waste
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举一反三
【单选题】下列关于吸人性肺脓肿的叙述不正确的是
A.
多属厌氧菌为主的混合感染
B.
仰卧位好发于右上叶后段
C.
空洞内壁凹凸不平,为偏中心的空洞
D.
病后10天咳大量脓痰,且常有恶臭味
E.
有效抗生素治疗可大于8周
【简答题】n. 图钉
【单选题】水泥稳定碎石组成设计内容描述: ①轻型击实试验确定混合料最佳含水量和最大干密度; ②配制不同水泥剂量的混合料; ③检验水泥最小剂量要求; ④进行7天无侧限抗压强度试验; ⑤按最佳含水量和最大干密度制备试件; ⑥根据强度标准确定合适的水泥剂量; 错误的描述有()。
A.
①⑤
B.
①④⑤
C.
④⑤⑥
D.
①②③④⑤⑥
【多选题】护士小李,为高血压患者进行健康教育,在有关血压生理变化的叙述中正确的是:
A.
更年期前女子略低于男子
B.
寒冷环境血压上升
C.
睡眠不佳时血压可稍升高
D.
上肢血压低于下肢血压
E.
坐位血压低于卧位血压
【判断题】水泥稳定碎石混合料7天无侧限抗压强度试验的试件径高比为1:1,直径为100mm。( )
A.
正确
B.
错误
【判断题】正常的棒球传球方式所使用的是食指、中指和无名指。
A.
正确
B.
错误
【多选题】土石方平衡章节应分区(或分段)说明土石方的()量,并对分区(或分段)之间与其他建设项目的调运利用情况做出说明
A.
开挖
B.
回填
C.
废弃
D.
外借
【单选题】水泥稳定碎石组成设计内容的描述有:①轻型击实试验确定混合料最佳含水量和最大干密度; ②配制不同水泥剂量的混合料; ③检验水泥最小剂量要求; ④进行7天无侧限浸水抗压强度试验; ⑤按最佳含水量和最大干密度制备试件; ⑥根据强度标准,确定合适的水泥剂量; 错误描述有()。
A.
①-⑤
B.
①-④-⑤
C.
④-⑤-⑥
D.
①-②-③-④-⑤-⑥
【单选题】水泥稳定碎石组成设计内容的描述有:1轻型击实试验确定混合料最佳含水量和最大干密度;2配制不同水泥剂量的混合料;3检验水泥最小剂量要求;4进行7天无侧限浸水抗压强度试验;5按最佳含水量和最大干密度制备试件;6根据强度标准,确定合适的水泥剂量;错误描述有( )。
A.
①⑤
B.
①④⑤
C.
④⑤⑥
D.
①②③④⑤⑥
【判断题】承台是桩基础的一个重要组成部分,按极限状态设计,一般应进行局部抗压、抗冲切、抗弯抗剪计算。 ( )
A.
正确
B.
错误
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