更多“混凝实验最大投药量时，混凝效果（）”相关的问题
一慢性肾炎尿毒症期患者，近一个月来厌食、皮肤瘙痒，前日起呕吐。体检：血压23/16kPa(172／120mmHg)，神清，贫血貌，心肺检查无异常。Hb50g/L，尿蛋白(+)，比重1.010，血...此患者主诉皮肤瘙痒，下列皮肤护理措施错误的是（）
A.勤用肥皂洗澡
B.可用温水擦洗
C.勤换衣服
D.经常更换卧姿
E.按摩受压部位
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In promising to fuse media as diverse as television, telephone communication, video games, music and data transmission, the era of digital convergence goes better than yesterday's celebrated 'information superhighway'. Yet achieving this single technology is far from straightforward. There are currently three major television broadcast standards, and they are all incompatible with each other. But this is nothing compared to the many technologies supporting the Internet, each with a different bandwidth and physical media. The problems faced in designing platforms and communication systems that will be accepted across the world can appear insuperable. Even once global standards are assured, however, a further obstacle lies in wait. The Internet is plagued by long, erratic response times because it is a pull-technology, driven by patterns of user demands. Push technology, on the other hand, reverses the relationship: servers simply send information to passive users, as in television and radio. But if some form. of combination between one-way television flow and interactive Internet is to be the basis of our future media, it is hard to see how it could be operated. Moreover, the problem of fusing Internet with television is also one of defining the services offered. Information, entertainment and relaxation appear at first to be quite different needs. Serious doubts remain over whether consumers will be interested in having to make the sort of mental effort associated with computing while also settling down in front of a sitcom. Besides the issue of consumer habits, infrastructure costs are set to be immense, and will have to be met by national states or the private sector before being passed on to users. Platforms do not necessarily have to be expensive. The mobile phone is a good example of how something that is technologically sophisticated can almost be given away, with its cost recovered through service charges. Users are then coerced through clever marketing to upgrade to newer phones with more features to reinforce their dependence. Whatever the outcome, it is obvious that technology will play an increasing part in our everyday lives. Beyond technology, digital convergence embraces the services, industrial practices and social behavior. that form. modern society. We have in our hands the technology to construct the most sophisticated machines ever built, but if they are unusable, simply because of their operating instructions, then recent lessons have taught us they will not survive. Whatever we design must be simple, reliable and useful. Perhaps this is where artificial intelligence will come in.By digital convergence, the writer means______A．diversification of communication systems.B．integrating a wide range of means of media.C．adaptation of global standards to consumer habits.D．detaching entertainment from communications.
A.B.C.D.ByE.diversificationF.B．integratingG.C．adaptationH.D．detaching
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关于非选择性尿蛋白，正确的是()
A . A．非选择性尿蛋白不是临床上判断肾小球损害程度的指标
B . B．非选择性尿蛋白成分以清蛋白为主
C . C．尿液中出现免疫球蛋白IgG、IgM和补体C3
D . D．极少出现际微球蛋白
E . E．尿免疫球蛋白/清蛋白＜0.1
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若病人以口渴为甚者，可加用
A．地骨皮、知母B．天花粉、知母C．地骨皮、青蒿D．天花粉、生地E．玄参、生地
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求下列差分方程所描述的LTI离散系统的零输入响应。 （1)y（k) ＋3y（k一1) ＋2y（k一2)=f（k)，
求下列差分方程所描述的LTI离散系统的零输入响应。 (1)y(k) ＋3y(k一1) ＋2y(k一2)=f(k)， y(﹣1)=0，y(﹣2)=1 (3)y(k) ＋y(k一2)--f(k一2)， y(﹣1)＝ 一2，y(﹣2)= ﹣1
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一个产业经受经济周期波动的程度主要依赖于（ ）。
A.产品需求的收入弹性 B.产品需求的价格弹性 C.产品供给弹性 D.产品需求的价差弹性
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TN-C系统是( )的系统。
A．干线部分的前一段PE线与N线共用为PEN线，后一段PE线与N线分开
B．支线部分的PE线是与N线共用
C．PE线N线完全分开
D．干线部分PE线与N线完全共用
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成本推动型通货膨胀可以进一步分为( )。A.温和型通货膨胀B.工资推进的通货膨胀C.隐蔽型通货膨
成本推动型通货膨胀可以进一步分为( )。 A.温和型通货膨胀 B.工资推进的通货膨胀 C.隐蔽型通货膨胀 D.利润推进的通货膨胀 E.公开型通货膨胀
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就我国旅行社集团组建模式而言，结合现有的市场情况，应选择行政组合模式与资本运作模式或资产运作模式相结合的模式。( )
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妊娠妇女产程中使用可引起新生儿呼吸抑制的药品是
A.阿莫西林
B.氨甲环酸
C.维生素D
D.吗啡
E.沙利度胺
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间充质干细胞主要来源（)。
A.成人骨髓
B.小孩骨髓
C.老年人骨髓
D.孕妇骨髓
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血尿素的浓度取决于肌体（）、食物中蛋白质含量及（）的排泄能力。
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黄山位于中国东部（）南部黄山原称黟山，因传说中华民族的始祖（）曾在此修炼升仙。唐天宝六年（公元747年）六月十六日改现名，这一天还被唐玄宗钦定为黄山的生日。
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A . 排水沟的线形要求平顺，转弯处尽可能做成折线B . 排水沟长度根据实际需要而定，通常不宜超过500mC . 排水沟沿路线布设时，应离紧靠路基坡脚设置D . 排水沟的平面应平行于公路中线
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