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[填空题]Automatic Doors in Egypt

When you next step through the doors of a supermarket,spare a thought for Heron,a talented specialist of ancient "high tech" engineering. Nearly two thousand years ago he designed automatically opening doors for the temples of the Egyptian city of Alexandna.
Heron had a talent for designing mechanical wonders to surprise people and make people happy. (46) was a gift to the Egyptian priests,who for centuries had used wonder mechanical or otherwise,as a way of strengthening their authority.
Employing relatively simple mechanical principles, Heron devised a means (47) as if by unseen hands--when the priest lit a fire on the altar outside the temple. The fire heated the air in a metal globe placed beneath the altar ,foreign the water in it through a pipe into an enormous bucket. The bucket was suspended by chains from a system of weights and pulleys, which turned the doors on thei

热门试题:

[单选题]在广域网中使用的网络互联设备是().
A.集线器
B.网桥
C.交换机
D.D:路由器

[多选题]以下说法，正确的有（）
A.浮选过程中的最基本行为是气泡的发生。
B.随着叶轮转速的提高，使浮选机的功率消耗随之增大，叶轮磨损加剧，所以机械搅拌式浮选机的线速度一般不超过10m/s。
C.充气均匀系数是用来衡量浮选机液面气泡的分布均匀程度的指标。
D.充气容积利用系数是用来衡量浮选机槽内的气泡分布均匀程度的指标。

[判断题]粮谷和蔬菜中的植酸盐、草酸盐以及茶叶和咖啡中的多酚类物质不会影响铁的吸收。( )

[判断题]为了简化核算,当月购入的投资性房地产,当月按整月计提折旧;当月处置的投资性房地产,当月停止计提折旧。( )
A.正确
B.错误

[判断题]避雷器与被保护设备串联连接。( )
A.正确
B.错误

[单选题]商业银行使用内部模型法必须满足( )关于市场风险的一般性要求，并符合其他定性要求。
A.监管机构
B.人民银行
C.《人民银行法》
D.《商业银行法》

[单项选择]在DNS服务器的“新建区域”配置过程中，有多种区域类型可供选择。如果要创建可以直接在此服务器上更新区域的副本，则区域类型应选择（）。
A. 主要区域
B. 辅助区域
C. 存根区域
D. 所有区域

[简答题]自身免疫性溶血性贫血［病例摘要］女性，36岁，乏力、面色苍白半个月半个月无原因进行性面色苍白、乏力，不能胜任工作，稍动则心慌、气短，尿色如浓茶，化验有贫血（具体不详），发病以来无发热、关节痛、脱发、光过敏，进食和睡眠稍差，大便正常。既往体健，无心、肝、肾、结核病史，无毒物接触史，无药物过敏史，无偏食和烟酒嗜好，月经正常，家族中无类似患者。查体：T36.5℃，P96次/分，R16次/分，Bp110/70mmHg，一般可，贫血貌，无皮疹和出血点，全身浅表淋巴结未触及，巩膜轻度黄染，舌乳头正常，甲状腺（-），心肺无异常，腹平软，肝未及，脾肋下1cm，腹水征（-），双下肢不肿。化验：血Hb68g/L，WBC6.4×10⁹/L，N72%，L24%，M4%，可见2个晚幼红细胞，可见嗜碱性点彩红细胞，plt140×10⁹/L，网织红细胞18%，尿常规（-），尿胆红素（-），尿胆原强阳性，大便常规（-），隐血（-），血总胆红素41μmol/L，直接胆红素5μmol/L，Coombs试验（+）。要求：根据以上病历摘要，请写出初步诊断、诊断依据（如有两个以上诊断，应分别写出各自诊断依据，未分别写出扣分）、鉴别诊断、进一步检查与治疗原则。

[多选题]我国《教师法》中规定的教师待遇主要包括（）。
A.工资待遇
B.教师津贴
C.教师住房
D.教师的医疗保健
E.教师补贴

[多项选择]下面观点属于皮亚杰的是（）。
A. 影响心理发展的因素主要有成熟、物理环境、社会环境和平衡四个方面
B. 支配儿童心理发展的因素是成熟与学习，成熟是儿童发展的主要动力
C. 认知发展可分为感知运动、前运算、具体运算和形成运算四个阶段
D. 只有走在发展前面的教学，才是好的教学

[单选题]已知并联电路电阻R1=600Ω，R2=400Ω，总电流为5A，试求该电路中流过R1和R2的电流I1和I2分别是多少()
A.I1=3A、I2=2A
B.I1=2A、I2=3A
C.I1=4A、I2=1A
D.I1=2.8A、I2=2.2A

[判断题]母线保护中母联开关充电保护定值由调度机构整定。
A.正确
B.错误

[单项选择]DGR第二章限制性主要讲了危险品不同的运输限制，它们是（）。
A. 一部分禁止运输
B. 一部分作为限制数量危险品
C. 一部分作为例外数量危险品；一部分允许作为航空货物运输的危险品
D. 以上A、B、C项都是

[填空题]/r/n /r/n /r/n /r/n /r/n /r/n /r/n /r/n /r/n /r/n /r/n /r/n /r/n /r/n /r/n /r/n /r/n /r/n /r/n /r/n /r/n

A meeting
Predictions	Reality
It will be a (16) meeting	It is (17) .
There will be (18) people at the meeting.	There were (19) people.
	There were (19) people.

They are likely to (20) .	They (21) about most points.
It will (22) .	It finished early.

[单选题]一次食物中毒员工人数 10-29 人，未出现死亡病例，属于（）。
A.Ⅰ级突发公共卫生事件
B.Ⅱ级突发公共卫生事件
C.Ⅲ级突发公共卫生事件
D.Ⅳ级突发公共卫生事件

[名词解释]文人画

[单项选择]放射损伤脂肪的供给量不宜过高，但应增加下列哪种物质（）。
A. 羊油
B. 饱和脂肪酸
C. 猪油
D. 必需脂肪酸
E. 牛油

[单项选择]I lay on the bed, ______ to the radio.
A. listen
B. hear
C. listening
D. hearing

[多选题]环网柜部分停电工作，若进线柜线路侧有电，()。
A.进线柜应设遮栏，悬挂“止步，高压危险！”标示牌
B.在进线柜负荷开关的操作把手插入口加锁
C.在进线柜负荷开关的操作把手悬挂“禁止合闸，有人工作！”标示牌
D.在进线柜接地刀闸的操作把手插入口加锁

[判断题]电场强度是矢量,单位是伏/米（v/m）。（）
A.正确
B.错误

[多项选择]用补气法治疗失血，其主要理论依据是（　）
A. 气能生血
B. 血能生气
C. 气能摄血
D. 阴阳互根
E. 气旺血足

[单项选择]"恶心、呕吐"是指（）
A. 证候
B. 体征
C. 症状
D. 病
E. 状态

[单项选择]SQL语言中的视图提高了数据库系统的( )。
A. 完整性
B. 并发性
C. 隔离性
D. 安全性

[单项选择]423×187-423×24-423×63的值是( )。
A. 41877
B. 42300
C. 42323
D. 42703

[判断题]沥青碎石配合比设计的主要控制指标是空隙率和饱和度。()
A.正确
B.错误

[单选题]有关产褥期内分泌系统变化说法,不正确的是:
A.分娩后,雌激素和孕激素于产后1周降至未孕时水平
B.不哺乳产妇通常在产后6~10周月经复潮
C.哺乳产妇月经复潮延迟
D.哺乳产妇因无月经来潮,无受孕的可能
E.胎盘生乳素于产后6h不能再测出

[单项选择]无障碍设施坡道的宽度一般为（）
A. 1m
B. 1.5m
C. 2m
D. 2.5m
E. 以上均不对

[多选题]预约编号构成包括（）
A.驾驶员电话号码
B.预约人电话号码
C.预约时间
D.预约下高速时间
E.ETC 费显和清分结算系统优化工程实施方案

[单项选择]
阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案。

{{B}} Annual Performance Reviews{{/B}}
In theory, annual performance reviews are constructive and positive interactions between managers and employees working together to attain maximum performance and strengthen the organization. In reality, they often create division,{{U}} (51) {{/U}}morale (士气) ,and spark anger and jealousy.{{U}} (52) {{/U}}, although the object of the annual performance review is to improve performance, it often has the{{U}} (53) {{/U}}result. A programmer at a brokerage (经纪) firm was shocked to learn at her annual performance review that she was denied a promotion{{U}} (54) {{/U}}she wasn’t a "team player", What were the data used to make this{{U}} (55) {{/U}} She didn’t smile in the company photo.
{{U}} (56) {{/U}}this stor
A. Thus
B. Nevertheless
C. Moreover
D. Also

[单项选择]

{{B}} Text{{/B}}
The conception of poverty and what to {{U}} (26) {{/U}} about it have changed over the decades. Under Social Darwinism the lazy and the {{U}} (27) {{/U}} were supposed to be at the bottom of the economic ladder as a result of the "law of {{U}} (28) {{/U}} of the fittest". Society was {{U}} (29) {{/U}} as a network of self-sufficient families which provided for their own. {{U}} (30) {{/U}} persons outside a household (orphans, the {{U}} (31) {{/U}} elderly,and the crippled) were provided outdoor relief grudgingly and as a temporary expedient. Although it was {{U}} (32) {{/U}} that "the poor will always be with us", the individual was expected to improve himself {{U}} (33) {{/U}} acts of his own will. Charity was thought to be the {{U}} (34) {{/U}} of idleness.
A. childless
B. ehildly
C. ehildllke
D. childish

[单选题]附加票包括（）。
A.加快票、卧铺票
B.卧铺票、空调票
C.加快票、卧铺票、变径票
D.加快票、卧铺票、空调票

[单选题]以下不会造成JT1-CZ2000机车信号主机Ⅰ端正常，而Ⅱ端A主机板不工作的是( )。
A.A主机板故障
B.Ⅱ端接收线圈故障
C.主机连接板继电器故障
D.Ⅱ端接收线圈至接线盒的电缆断线

[单选题]批复的开头通常要引述来文作为批复的依据，（）属于引述来文日期和请示事项。
A.×年×月×日来文收悉
B.×年×月×日×号文收悉
C.×年×月×日《关于……的请示》收悉
D.×年×月×日关于……问题的请示收悉

[单项选择]

Born in 1879, in Ulm, Germany, Einstein was two years old when his parents moved to Munich. There his father opened a business in electrical supplies. As a boy, Einstein did not learn to talk until later than others of his age, and in his early childhood he was not considered especially bright. But by the time he was 14 years old, he had taught himself advanced mathematics from textbooks. By them he knew what he wanted to be when he grew up. He wanted to be a physicist and &vote himself to research.
Einstein could not afford to pay for the advanced education he needed, because his family business had declined. Later, he and his family were forced to leave Munich to live in Milan, Italy, where they had relatives. As for him, the family did manage to send him to a technical school in Switzerland, and later to the Federal Institute of Technology in Zurich. In 1901, when Einstein was 22 years old, he began teaching, and in 1902, be went to work as a patent office examiner
A. When he was 2 years old.
B. When he was 14 years old.
C. When he finished his study.
D. When he became a teacher.

[单选题] 依据《安全生产法》,以下()不属于生产经营单位主要负责人对本单位安全生产工作应负的职责。
A.组织制定本单位安全生产规章制度和操作规程
B.自行对新改建项目进行安全预评价
C.保证本单位安全生产投入的有效实施
D.及时如实报告安全生产事故

[单项选择]健康促进规划的设计和评价都包含健康促进（）
A. 调查
B. 测量
C. 监测
D. 观察
E. 评估

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