热门试题:
[单选题]无人机飞行人员在执行飞行任务时,应当随身携带_________。[1分]
A.飞行记录本
B.飞机适航证书
C.驾驶员执照或合格证
[单选题]系统软件是软件的组成之一。
A.正确
B.错误
C.a.硬件
D.b.电脑程序
E.c.应用程序
[单项选择]某儿童,发热5天,伴咳嗽,胸部透视右肺下叶有散在小病灶阴影。最可能是
A. 原发综合症
B. 支气管扩张
C. 干酪样肺炎
D. 小叶性肺炎
E. 粟粒性肺结核
[填空题]选择德育内容的依据有三点:一是德育_________;二是受教育者的身心发展特征;三是德育所面对的时代特征和学生思想实际。
[单选题]DS6-11在计算机联锁系统的驱动电源应由GZJ的()构成条件电源。
A.前接点
B.后接点
C.中接点
D.继电器线圈
[单项选择]哪一项不是青春期第二性征发育特点
A. 乳房发育增大
B. 乳晕增大、色素加深
C. 月经来潮
D. 腋毛发育
E. 阴毛发育
[判断题]不准使卸扣处于吊件的转角处。
A.正确
B.错误
[单项选择]常见的眉形有,()、下垂眉。
A. 平直眉、上挑眉、弧形眉
B. 标准眉,上挑眉、弧形眉
C. 标准眉,平直眉、弧形眉
D. 标准眉,平直眉、上挑眉、弧形眉
[单项选择]下列指令中,有几条指令需要使用DX寄存器
①MUL BX;②DIV BL;③IN AX,20H;④OUT 20H,AL
A. 1条
B. 2条
C. 3条
D. 4条
[单项选择]
女性,66岁,不慎跌倒时以手掌撑地,造成右手Colles骨折。
该病人患处的典型表现是()
A. 方肩畸形
B. 肘后三角关系失常
C. 旋前、屈腕、尺偏位
D. 搭肩试验阳性
E. 侧面观"枪刺刀"畸形
[简答题]慢性龈炎的病损主要位于(?)和(?),在牙龈病中最常见。
[单选题]起重机、高空作业车和铲车等施工机械操作正常活动范围及 起重机臂架、吊具、辅具、钢丝绳及吊物等与220kV带电设备的安全距 离不得小于( )米。
A.6
B.7
C.8
D.9
[多项选择]中、晚期胃癌常见的症状和体征包括( )
A. 上腹痛
B. 胃纳不佳
C. 出血和黑便
D. 腹部肿块
[单项选择]大量腹水病人行开腹手术,打开腹腔时最可能发生()
A. 心力衰竭
B. 肺水肿
C. 肾衰竭
D. 呼吸衰竭
E. 低血容量性休克
[不定项选择题]共用题干
Fermi Problem
On a Monday morning in July,the world's first atom bomb exploded in New Mexico desert. Forty seconds later,the shock waves reached the base camp where the Italian-American physicist Enrico Fermi and his team stood.After a mental calculation,Fermi announced to his team that the bomb's energy had equated 10,000 tons of TNT. The bomb team was impressed,but not sur-prised.Fermi's genius was known throughout the scientific world.In 1938 he had won a Nobel Prize.Four years later he produced the first nuclear chain reaction,leading us into the nuclear age .Since Fermi's death in 1954,no physicist has been at once a master experimentalist(实验室)and a leading theoretician(理论学家).
Like all virtuosos(大师),Fermi had a distinctive style. He preferred the most direct route to an answer. He was very good at dividing difficult problems into small,manageable bits talent we all can use in our daily lives.
To develop this talent in his students,Fermi would suggest a type of question now known as a Fermi problem.Upon first hearing one of these,you haven't the remotest notion of the answer, and you feel certain that too little information had been given to solve it. Yet when the problem is broken into sub-problems,each answerable without the help of experts or books,you can come close to the exact solution.
Suppose you want to determine earth's circumference without looking it up.Everyone knows that New York and Los Angeles are about 3,000 miles apart and that the time difference between them is three hours.Three hours is one-eighth of a day,and a day is the time it takes the planet to complete one rotation(旋转),so its circumference must be eight times 3 ,000 or 24,000 mi-les .This answer differs from the true value,24,902 .45 miles,by less than four percent.
Ultimately the value of dealing with everyday problems the way Fermi did lies in the rewards of making independent discoveries and inventions.It doesn't matter whether the discovery is as important as determining the power of an atom or as small as measuring the distance between New York and Los Angeles.Looking up the answer,or letting someone else find it,deprives you of the pleasure and pride that accompany creativity,and deprives you of an experience that builds up self-confidence.Thus,approaching personal dilemmas as Fermi problems can become a habit that enriches your life.
Fermi was famous for inventing a device to calculate bomb's energy accurately.
A.Right
B.Wrong
C.Not mentioned
[多选题]统一授信平台中,授信额度类型可以分为()
A.A、个人客户授信
B.法人客户授信
C.综合授信
D.特别授信
[单选题]Radar is not only to obtain ,but also to measure their distance away from you.
A. brightness of obtain
B. color of targets
C. shape of targets
D. bearing of objects
[判断题]金融机构清分中心发现假人民币纸币不加盖假币戳记,主要目的是不破坏假币形态。( )
A.正确
B.错误
[多选题]在配电线路、设备上进行非电气专业工作(如电力通信工作等),应执行工作票制度,并履行()等相关安全组织措施。
A.停电
B.工作许可
C.验电
D.接地
E.工作监护
[多项选择]公共政策效果的类型有()
A. 潜在效果
B. 直接效果
C. 附带效果
D. 象征性效果
[单项选择]
A. beam
B. radiation
C. light
D. ray
[判断题]电源电动势的方向规定为由电源负极经电源内部指向电源正极。
A.正确
B.错误
[单选题]在继乘站不办理客运业务的动车组变更股道接发车时,由列车调度员(车站值班员)提前通知( )。
A.车务应急值守人员
B.车站客运人员
C.车站综控人员
D.机务派班室
[多选题]以下选项中,哪些项事故(事件)的后果为一般 A 类事件构。( )
A.2 人死亡的
B.1 至 2 人重伤的
C.3 人以上轻伤的
D.电梯轿厢滞留人员 90 分钟及以上;
[判断题]根据《安全生产法》,负有安全生产监督管理职责的部门的工作人员对未依法取得批准、验收的单位擅自从事有关活动不予取缔或者不依法予以处理的,给予罚款处分。
A.正确
B.错误
[单选题]开工蒸汽喷射器能量转换的过程为( )。
A.内能—静压能—动能
B.位能—动能—静压能
C.动能—静压能—动能
D.静压能—动能—静压能
[单选题]使用铁路篷布时将()填记在货物运单“铁路货车篷布号码”栏内。
A.
篷布现状
B.
篷布质量
C.
篷布号码
D.
篷布代码
[不定项选择题]青蒿为菊科植物黄花蒿的干燥地上部分。青蒿素是其主要抗疟有效成分,系我国学者于20世纪70年代初首次从青蒿中分离得到。临床应用表明青蒿素对间日疟或恶性疟的治疗具有疗效显著、副作用小的优点,是一种高效、速效的抗疟有效单体化合物。
青蒿素的结构类型是
A.单萜
B.倍半萜
C.二萜
D.三萜
E.四萜
[判断题]三相四线制中线不能加装保险丝( )
A.正确
B.错误
[多项选择]观察记录的主要方法有()。
A. 日记记录法
B. 描述记录法
C. 仪器记录法
D. 表格记录法
[多项选择]可以作为构思效度的测验间比较的有()。
A. 内容效度
B. 相容效度
C. 区分效度
D. 因素分析法
[判断题]持证人提出注销申请的,应当注销驾驶证。( )
A.正确
B.错误
[判断题]创伤急救时,如果伤员颅脑外伤,应使伤员采取平卧位,保持气道通畅,若有呕吐,应扶好头部和身体,使头部和身体同时侧转,防止呕吐物造成窒息。
A.正确
B.错误
[判断题]( ) 340 发动机润滑系是只起润滑作用的系统。
A.正确
B.错误
[单项选择]以下关于水环境质量标准和水污染排放标准说法错误的是( )。
A. (A) 国家水环境质量标准由国务院环保部门,即国家环保总局制定
B. (B) 省、自治区、直辖市人民政府可以对国家水环境质量标准中未作规定的项目,制定地方补充标准
C. (C) 省、自治区、直辖市人民政府可以对国家水污染排放标准中未作规定的项目,可以制定地方水污染排放标准
D. (D) 省、自治区、直辖市人民政府可以对国家水污染排放标准中已作规定的项目,可以根据地方具体情况制定地方水污染排放标准
[单选题]转变检修模式,集中力量开展( )工作,充分应用带电作业、中(低)压发电等综合不停电技术,统筹配网工程、检修消缺、用户接入等生产任务,做到“能带不停,一停多用”。
A.停电检修
B.不停电检修
C.带电作业
D.综合检修