热门试题:
[不定项选择题]共用题干
Albert Einstein,whose theories on space time and matter helped unravel the secrets of the atom and of the universe,was chosen as"Person of the Century"by Time Magazine on Sunday.
A man whose very name is synonymous with scientific genius,Einstein has come to represent more than any other person the flowering of 20th century scientific thought that set the stage for the age of technology.
"The world has changed far more in the past 100 years than in any other century in history. The reason is not political or economic,but technological一technologies that flowed directly from advances in basic science,"wrote theoretical physicist Stephen Hawking in a Time essay explaining Einstein's significance._________(46)
Time chose as runner-up President Franklin Roosevelt to represent the triumph of freedom and democracy over fascism,and Mahatma Gandhi as an icon for a century when civil and human rights became crucial factors in global politics.
"What we saw Franklin Roosevelt embodying the great theme of freedoms fight against totalitarianism,Gandhi personifying the great theme of individuals struggling for their rights,and Einstein being both a great genius and a great symbol of a scientific revolution that brought with it amazing technological advances that helped expand the growth of freedom."said Time Magazine Editor Walter Isaacson.
Einstein was born in Ulm,Germany in 1879._________(47)He was slow to learn to speak and did not do well in elementary school.He could not stomach organized learning and loathed taking exams.
In 1905,however,he was to publish a theory which stands as one of the most intricate examples of human imagination in history._________(48)Everything else一mass,weight,space,even time itself—is a variable.And he offered the world his now-famous equation:energy equals mass times the speed of light squared,E=mc2.
_________(49)"There was less faith in absolutes,not only of time and space but also of truth and morality."
Einstein's famous equation was also the seed that led to the development of atomic energy and weapons.In 1939,six years after he fled European fascism and settled at Princeton University,Einstein,an avowed pacifist,signed a letter to President Roosevelt urging the United States to develop an atomic bomb before Nazi Germany did.________(50)Einstein did not work on the project.
Einstein died in Princeton,New Jersey in 1955.
________(48)
A."Indirectly,relativity paved the way for a new relativism in morality,art and politics," isaacson wrote in an essay explaining Time's choices.
B.How he thought of the relativity theory influenced the general public's view about Albert Einstein.
C."Clearly,no scientist better represents those advances than Albert Einstein."
D.Roosevelt heeded the advice and formed the"Manhattan Project"that secretly developed the first atomic weapon.
E.In his early years,Einstein did not show the promise of what he was to become.
F.In his"Special Theory of Relativity",Einstein described how the only constant in the universe is the speed of light.
[多项选择]当前俄美关系的特点是()。
A. 亲密伙伴关系
B. 相互对抗关系
C. 既是合作伙伴
D. 又是竞争对手
[单选题]测量孔径磨耗以深人孔内()处为准。(1.0分)
A.1/2处
B.1/3处
C.10mm
D.25mm
[简答题]
Directions: You are to write in 100-120 words on the topic “Family Education”. You should base your composition on the outline given in Chinese below:
1. 父母是孩子最好的老师;
2. 父母的言行影响孩子;
3. 谈谈你的看法。
[单项选择]配制浓度等于或低于()mol/L的标准溶液时,应于临用前将浓度高的标准溶液用煮沸并冷却的水稀释,必要时重新标定。
A. 0.06
B. 0.04
C. 0.02
D. 0.01
[单选题]128.某条架空线路需跨越河流,此时应采用( )。
A.A.直线杆塔
B.B.分支杆塔
C.C.跨越杆塔
D.D.终端杆塔
[判断题]我国《食品安全法》的立法目的是:为保证食品安全,保障公众身体健康和生命安全
A.正确
B.错误
[单项选择]易引起听力减退或暂时性耳聋的利尿药是
A. 呋塞米
B. 氢氯噻嗪
C. 氨苯蝶啶
D. 螺内酯
E. 乙酰唑胺
[单项选择]下列矿山工业场地内的建筑物,属于涉及重大安全、环保设施的是( )。
A. 锅炉房
B. 油脂库
C. 变电所
D. 医务室
[单选题]有限空间作业监护人应持有北京市安监局核发的有限空间特种作业证,且证件应在有效期内
A.正确
B.错误
C.略
D.略
E.略
F.略
[多选题]5G组网方案的选择,需要同时综合考虑多种因素,包括( )。
A.业务的传输需求
B.建设成本投入
C.维护难度
D.安装地点大小
[单项选择]数据流图用于描述一个软件的逻辑模型,数据流图由一些特定的图符构成。下列图符名称标识的图符不属于数据流图合法图符的是( )。
A. 控制流
B. JJ[1]T
C. 贮存文件
D. 源和潭
[单项选择]现有10kg50%的托布津可湿性粉剂,需用水稀释成20%的药液,则应加水()Kg。
A. 30
B. 25
C. 20
D. 15
[单项选择]预防动脉粥样硬化应注意多摄入()
A. 饱和脂肪酸
B. 不饱和脂肪酸
C. 反式脂肪酸
D. 甘油三酯
E. 胆固醇
[单选题]下列关于租赁用途的表述,错误的是( )。
A.承租人应当按照租赁合同规定的用途和使用要求使用房屋
B.承租人与第三者互换房屋时,应当事先征得出租人的同意,出租人应当支持承租人的合理要求
C.确需变动租赁用途的,不需要征得出租人的同意,但必须重新签订租赁合同
D.承租人与第三者互换房屋后,原租赁合同即行终止,新的承租人应与出租人另行签签订租赁合同
[单选题]患者女性,18岁。因急性淋巴细胞白血病行静脉输血治疗,输血约15ml后,主诉头部胀痛,四肢麻木,腰背部剧烈疼痛及胸闷,继而出现酱油色尿及黄疸,此时患者可能发生
A.空气栓塞
B.急性肺水肿
C.溶血反应
D.枸橼酸钠中毒反应
E.过敏反应
[单项选择](APS2000)下列哪一个不是造成滑油低压保护性停车的原因之一()
A. 滑油泵故障
B. 滑油油量低
C. 低压电门故障
D. 通气管路堵塞
[单选题]污水好氧生物处理的BOD5:N:P为( )。
A.100:5:1
B.100:3:1
C.50:5:1
D.50:3:1
[单项选择]20世纪80年代中国利用外资的主要来源是()。
A. 美国
B. 香港地区
C. 欧洲国家
D. 东南亚
[判断题]在通信不畅或瞭望条件不良地段作业时,应增设防护员。
A.正确
B.错误
[单项选择]安装离心泵时,应用()刮净离心泵各密封面处的杂物,放好密封垫片。
A. 直尺
B. 锯条
C. 螺丝刀
D. 刮刀
[判断题]外部开入直接启动,不经闭锁便可直接跳闸(如变压器和电抗器的非电量保护、不经就地判别的远方跳闸等),或虽经有限闭锁条件限制,但一旦跳闸影响较大(如 失灵启动等)的重要回路,应在启动开入端采用动作电压在额定直流电源电压的 55%~70%范围以内的中间继电器,并要求其动作功率不低于5W。
A.正确
B.错误
[判断题] 长管拖车检验结束后,检验员不必做检验记录。()
A.正确
B.错误
[单选题]脚手架外挂的密目式安全网,必须符合( )标准要求。
A.阻燃
B.消防
C.安全
[单选题]在动车所、机务段(机务折返段)配备一定数量的( ),满足上线热滑融冰、刮冰需要。
A.铝基粉末碳滑板
B.铜基粉末碳滑板
C.钢基粉末碳滑板
D.铁基粉末碳滑板
[单选题]过滤式防毒面具,必须根据()选择。
A.职业卫生接触限值
B.防护对象
C.防护范围
[单选题]下列各项中,企业不需计算交纳增值税的是( )。
A.对外投资存货
B.销售代销商品
C.委托他人保管商品
D.以自产产品对外捐赠
[多选题]正常足月新生儿期应进行的预防接种有( )
A.乙型肝炎疫苗
B.百白破疫苗
C.卡介苗
D.乙型脑炎疫苗
E.脊髓灰质炎糖丸
[单选题]湖南省电力公司2020年“大经营”建设主要任务共有()大项。
A.23
B.25
C.30
D.33
[判断题]现场办理工作许可手续前,工作票签发人应与工作负责人核对线路名称、设备双重名称,检查核对现场安全措施,指明保留带电部位。
A.正确
B.错误
[判断题]电力系统中危及电气设备绝缘的电压升高即为过电压。(?)
A.正确
B.错误
[判断题]卸往运输车辆上的吊物,应保证放置平稳,确认不致倾倒后,方可松绑.卸物。
A.正确
B.错误
[单选题]中国铁路总公司关于印发《铁路常旅客服务办法》的通知中,年满( )周岁的自然人可通过www.12306.cn网站(含“铁路12306”手机APP,以下简称网站)、车站会员服务窗口申请成为会员。
A.18
B.16
C.14
D.12
[判断题]旁通注入法是化学危险品爆炸燃烧事故中常用灭火方法。( )
A.正确
B.错误
[单项选择]下列何种抗原是触发移植排斥反应的首要抗原()。
A. HLA-A、B、C
B. HLA-DP
C. HLA-DQ
D. HLA-DR
E. HLA-D
[单选题]有限空间作业应坚持( )的原则,作业前应进行风险辨识,分析有限空间内气体种类并进行评估监测,做好记录。
A.先通风、再检测、后作业;
B.边通风、边作业;
C.先通风、再作业;
D.边检测、边作业