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Modcm inventions have speeded up people’s lives amazingly. Motor-cars cover a bundred miles in little more than an hour. Aireraft cross the world a day, while computers operate at lightning speed. Indeed, this love of speed seems never-ending. Every ycar motor-cars are produced which go even faster each new computer boasts(吹嘘)of saving preeious seconds in handling tasks. All this saves timc, but at a prick.When we lose or gain half a day in speeding aeross the world in an airplane, our bodies tell us so. We get the uncomfoerable feeling known as jet-lag; our bodies feel tlru they have been left bebind in anot ar nine zoors Again pending too long at compulers resul’s in painti ninrts and fingers. Mobile phones also to dange according to some seientists; too much uss may thesmit h bul radiation into our brains, a we do not like to think about. Howave, what do we do with the time we have saved?Certainly not or so it seems. We are so accustomed to constant activity that we find it difficult to sit and do nothing, or even just one thing at a time. Pcrhaps the days are long gone when we might listen quietly to a story on the radio, letting imavination take us into another world. There was a time when some people’s lives were devotcd simply to the cultivation of the land or the eare of eattle. No multi-tasking there; their lives wenl on at a much gentler pace, and in a familiar pattern. There is much that we might envy about a way of life like this. Yet before we do so ,we must think of the hard tasks our ancestors faeed;:they farmed with bare hands, often lived close to hunger, and had to fashion tools from wood and stone. Modem machinery has freed peope fre that primitive existcnee. 1.The new rooucts opcome more and more time-saving beeause_________. A.our love of speed secure never-ending B.time is limited C.theprices are increasingly high D.the manufacturers boast a lot 2.What does“the days”in Parag raph 3 refer to? A.I maginary life               B.Simple life in the past C.Times of inventions           D.Time for constant activity 3.What is the author’s attitude towards the modem teehnology? A.Critical            B.Objective        C.Optimistic            D.Negative 4.What does the pa mge mainly diseuss? A.The present and past times             B.Machinary and human beings C.Imaginations and inventions            D.Modem technology and its influenec
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【单选题】关于血细胞比容的叙述,错误的是
A.
用于计算红细胞3个平均指数的要素之一
B.
主要与红细胞数量及大小有关
C.
贫血时红细胞和血细胞比容平行减低
D.
大面积烧伤患者血细胞比容增高
【单选题】采用心轴定位法加工孔距的精度要求( )的孔系。
A.
不高
B.
较高
C.
一般
D.
较低
【单选题】某股份公司因2010年度出现亏损,董事会提议该年度暂缓发放优先股股息,待以后营利时一并发放。根据上述描述,可知该公司发行的优先股属于( )
A.
可转换优先股
B.
参与优先股
C.
股息率可调整优先股
D.
累计优先股
【单选题】关于血细胞比容的概念,哪个是错误的
A.
血细胞比容是指一定容积血液中红细胞占容积的百分比
B.
用温氏法测比容偏高,是由于仍存在3%的残留血浆量
C.
毛细管高速离心法的正确性在于不存在残留血浆量
D.
血细胞比容是一项相对值
E.
温氏法测定时,用水平离心机以2 264g离心30分钟
【判断题】在高温下,脂肪先发生水解,生成甘油和脂肪酸。()
A.
正确
B.
错误
【单选题】关于血细胞比容的叙述,错误的是
A.
用于计算红细胞3个平均指数的要素之一
B.
主要与红细胞数量及大小有关
C.
影响全血黏度的决定性因素之一
D.
贫血时红细胞和血细胞比容平行减低
E.
大面积烧伤患者血细胞比容增高
【单选题】脂肪可水解生成脂肪酸和()
A.
B.
甘油
C.
乙醇
D.
蔗糖
【多选题】根据现行的《中华人民共和国建筑法》规定,建设单位申请领取施工许可证,应当具备下列( )条件。
A.
已经办理该建筑工程用地批准手续;
B.
必须取得建设工程规划许可证。
C.
已经确定施工企业;
D.
有满足施工需要的资金安排、施工图纸及技术资料;
E.
有保证工程质量和安全的具体措施;
F.
解析:全国人民代表大会常务委员会关于修改《中华人民共和国建筑法》等八部法律的决定——中华人民共和国主席令第二十九号 。《中华人民共和国建筑法》第八条修改为:“申请领取施工许可证,应当具备下列条件: (一)已经办理该建筑工程用地批准手续; (二)依法应当办理建设工程规划许可证的,已经取得建设工程规划许可证; (三)需要拆迁的,其拆迁进度符合施工要求; (四)已经确定建筑施工企业; (五)有满足施工需要的资金安排、施工图纸及技术资料; (六)有保证工程质量和安全的具体措施。 “建设行政主管部门应当自收到申请之日起七日内,对符合条件的申请颁发施工许可证。”
【单选题】3血细胞比容是指血细胞
A.
与血管容积之比
B.
与白细胞容积之比
C.
与血浆容积之比
D.
在血液中所占的重量百分比
E.
在血液中所占的容积百分比
【单选题】下列实验操作不能达到实验目的的是 实验目的 实验操作
A.
证明乙烯能发生加成反应 将乙烯气体通入溴的四氯化碳溶液中
B.
鉴别Fe(OH) 3 胶体和FeCl 3 溶液 用激光笔分别照射两种物质,从侧面观察是否出现光亮的通路。
C.
检验酒精中是否含有水 取少量酒精加入无水硫酸铜粉末
D.
鉴别苯、环已烯和已烷 加入酸性高锰酸钾溶液
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