[单项选择]
Singapore’s Mixed Reality Lab is working on new ways of interacting with computers, including wearable devices and virtual war room that will allow officials to work together online as if they were all in one place. Its director is a spiky-haired Australian, a postmodern match for the fictional British agent James Bond’s tool man, O. It is funded by the Defense Science & Technology Agency, which controls half the $ 5 billion defense budget, and sponsors hundreds of research projects every year. The agency came to worldwide attention last year when it took just one day to customize a thermal scanner in order to detect travelers with high fever, helping to stem the spread of SARS.
DSTA is now working on a range of projects that are attracting attention in both the commercial and military worlds. It devised an air-conditioning system that harnesses melting ice and cool seawater to conserve electricity at the new Changi Naval Base, and could have broad
A. analyze Singapore’s defense system.
B. B. summarize the contributions of DST
C. introduce the technical advantages of a small country.
D. describe the roles and achievements of a government agency.
[单项选择]
{{B}}
Earth Will Survive Global Warming, But Will We {{/B}}
The notion
that human activity, or the activity of any organism, can affect Earth on a
planetary scale is still a hard one for many people to swallow. And it is this
kind of disbelief that fuels much of the public skepticism surrounding global
warming.
A poll conducted last summer by the Pew Research Center
found that only 41 percent of Americans believe the burning of fossil fuels
causes global warming. But in a meeting this week in Paris, officials from 113
nations have agreed that a highly anticipated international report will state
that global warming was "very likely" caused by human activity. The idea that
biology can alter the planet in broad and dramatic ways is widely accepted among
scientists, and they point to several precedents throughout the history of
life.
{{B}}The mighty microbes{{/B}}
Human-caused global
warmin
A. expelling carbon dioxide from their leaves
B. expelling oxygen from their leaves
C. directly reduce the blanket of gases
D. turning some carbon dioxide into lignin
[判断题]在车顶作业时,须将工具.材料放在边沿脚位。( )
A.正确
B.错误
[单选题].违反本规定,建筑施工企业隐瞒有关情况或者提供虚假材料申请安全生产许可证的,不予受理或者不予颁发安全生产许可证,并给予警告,( )内不得申请安全生产许可证。
A.2年
B.3年
C.1年
D.5年
[多选题]160km/h≥υmax>120km/h正线,60kg/m钢轨头部垂直磨耗或侧面磨耗达到()应判为钢轨重伤。
A.垂直磨耗11mm
B.垂直磨耗16mm
C.侧面磨耗16mm
D.侧面磨耗11mm
[单选题]厂房等主要建筑物、构筑物必须( )进行检查,结构应无倾斜、裂纹、风化、下塌、腐蚀的现象
A.时常
B.天天
C.随时
D.定期
[单选题] 测量轴电压和在转动着的发电机上用电压表测量转子绝缘的工作,应使用专用电刷,电刷上应装有( )以上的绝缘柄。
A.100mm
B.150mm
C.200mm
D.300mm
[单选题]登高离地距离超过1.5米时,一人在杆塔下( )。
A.指挥
B.协助
C.监护
D.
E.略
F.略
[单选题]如果确定专家的工作不足以实现审计目的,则注册会计师应当采取的措施是( )。
A.直接对财务报表出具保留意见
B.直接对财务报表出具无法表示意见
C.根据具体情况,实施追加的审计程序
D.与被审计单位的治理层进一步讨论
[单项选择]下列有关胰的叙述,错误的是()。
A. 胰由外分泌和内分泌两部分组成
B. 外分泌部分泌的胰液是最重要的消化液
C. 内分泌部主要分泌胰岛素
D. 横跨第1~2腰椎前,分头、体、尾三部
E. 其主胰管单独开口于十二指肠
[单项选择]对于用2根钢丝绳的曳引驱动电梯,钢丝绳的安全系数不应小于()。
A. 10
B. 12
C. 16
D. 20
[单选题]肝气郁结,血为气滞,冲任不畅,可发生
A.痛经
B.带下过少
C.胎动不安
D.子晕
E.滑胎
[多项选择]工程中常用的低压电气设备有( )。
A. 桥架
B. 低压断路器
C. 刀开关
D. 接触器
[单项选择]关于AFP下列哪项不正确()。
A. 肝炎、肝硬化AFP可呈阳性
B. 肝癌患者AFP可不升高
C. AFP浓度与肝癌大小不相关
D. 肝癌患者LCA结合型AFP的比值>25%
E. 活动性肝病AFP和ALT动态曲线平行或同步升高
[判断题]对于冠字号码查询人或查询代理人申请冠字号码查询的假币实物,查询受理单位应予以封存,并在实物上加盖假币印章。
A.正确
B.错误
[判断题]总线是计算机各功能部件之间传送信息的公共通道。
[单选题] 抽汲压力发生在井内管柱上提,会引起修井液向下流动,这部分修井液流动时受到流动阻力的影响,( )有效的井底压力。
A.降低了
B.增加了
C.不影响
D.大幅度增加
[填空题]Vitamins are organic compounds necessary, in small amounts in the diet for the normal growth and maintenance of life of animals, including man.
They do not provide energy, ________ do they construct or build any part of the body. They are needed for ________ foods into energy and body maintenance. There are thirteen or more of them, and if ________ is missing a deficiency disease becomes ________ .
Vitamins are similar because they are made of the same elements―usually carbon, hydrogen, oxygen, and ______ nitrogen. They are different ______ their elements are arranged differently, and each vitamin ______ one or more specific functions in the body.
________ enough vitamins is essential to life, although the body has no nutritional use for ________ vitamins. Many people, ________ , believe in being on the "safe side" and thus take extra vitamins. However, a well-balanced diet will usually meet all the body’’s vitamin needs.Vitamins are organic compounds necessary, in small amou
A. A.either
B.so
C.nor
D.never
[单选题]会计档案内部借阅时间一般不超过( )天,特殊原因最长不得超过( )天,到期如需继续使用,应当再办理借阅手续。
A.1,3
B.2,5
C.3,7
D.5,10
[单选题]2.161.第161题
变压器交接试验,测量绕组连同套管的绝缘电阻值不应低于出厂试验值的B。
A.60%
B.70%
C.80%
D.90%
[单项选择]男性,28岁,农民。秋收后感发热、头痛、不思进食4天,尿量减少2天入院。经过检查确诊为流行性出血热。入院后第2天病人无尿,浮肿加重,烦躁不安,气急、咳嗽。体检:端坐位,颈静脉充盈,心率140次/min,奔马律,两肺广泛湿啰音,BP24.7/12.5kPa(186/94mmHg)。化验:BUN60mmol/L,Cr430mmol/L。上述症状体征产生机制是()。
A. 高血压心脏病
B. 高血容量综合征
C. 颅内出血
D. 出血热合并肺部感染
E. 尿毒症脑病
[判断题]列车唤醒时,可测量MVB通道阻值
A.正确
B.错误