热门试题:
[判断题]横梁是动车组转向架构架组成部分。
A.正确
B.错误
[多选题] 安全疏散和避难设施包括( )等。
A.疏散出口
B.疏散走道
C.疏散楼梯(间)
D.疏散指示标志
E.避难层(间)
[判断题]无缝线路成段更换钢轨时,准备换入的长轨放在人平过道及信号机附近时,应有保持稳定和防止连电的措施。( )
A.正确
B.错误
[单项选择]定员定额分析法不包括()
A. 结构定员法
B. 岗位定员法
C. 效率定员法
D. 比例定员法
[判断题]单班单司机值乘的列车,机车与第一辆车的连挂,均由列检人员负责。( )
A.正确
B.错误
[单选题]在有核武器的国家中,第一个宣布不首先使用核武器的国家是:
A.A法国
B.B美国
C.C中国
D.D英国
[单选题]在LC串联电路中,对于其电抗值,下列说法正确的是( )。(A、4、Y)
A.在某频率点电抗为零
B.频率高时的电抗肯定比频率低时高
C.在时,电抗与成正比
D.以上都不对
[单项选择]凉开“三宝”中长于熄风止痉的方剂为()
A. 安宫牛黄丸
B. 紫雪
C. 至宝丹
D. 苏合香丸
E. 以上都不是
[多项选择]除当场解雇外,当需要进行处分时,主管应对违纪者进行( )的处分。
A. 正式口头警告
B. 书面警告
C. 增强其工作强度
D. 职务轮换
[单项选择]游标量具是利用游标原理进行读数的量具。分为()
A. 游标卡尺、游标深度尺和游标高度尺
B. 游标深度尺和游标高度尺
C. 游标卡尺和游标深度尺
D. 游标卡尺和游标高度尺
[不定项选择题]共用题干
第一篇
Why Don ' t Babies Talk Like Adults?
Over the past half-century,scientists have settled on two reasonable theories related to babytalk.One
states that a young child's brain needs time to master language,in the same way that it does to master other
abilities such as physical movement. The second theory states that a child's vocabulary level is the key fac-
tor. According to this theory,some key steps have to occur in a logical sequence before sentence formation
occurs.Children's mathematical knowledge develops in the same way.
In 2007,researchers at Harvard University,who were studying the two theories,found a clever way to
test them.More than 20,000 internationally adopted children enter the U.S.each year. Many of them no lon-
ger hear their birth language after they arrive,and they must learn English more or less the same way infants
do一that is,by listening and by trial and error. International adoptees don't take classes or use a dictionary
when they are learning their new tongue and most of them don't have a well-developed first language.All of
these factors make them an ideal population in which to test these competing hypotheses about how language
is learned.
Neuroscientists Jesse Snedeker,Joy Geren and Carissa Shafto studied the language development of 27
children adopted from China between the ages of two and five years.These children began learning English
at an older age than US natives and had more mature brains with which to tackle the task.Even so,just as
with American-born infants,their first English sentences consisted of single words and were largely bereft(缺
乏的)of function words , word endings and verbs. The adoptees then went through the same stages as typical
American-born children,though at a faster clip.The adoptees and native children started combining words in
sentences when their vocabulary reached the same sizes,further suggesting that what matters is not how old
you are or how mature your brain is,but the number of words you know.
This finding一that having more mature brains did not help the adoptees avoid the toddler-talk stage一
suggests that babies speak in babytalk not because they have baby brains,but because they have only just
started learning and need time to gain enough vocabulary to be able to expand their conversations.Before
long,the one-word stage will give way to the two-word stage and so on. Learning how to chat like an adult is
a gradual process.
But this potential answer also raises an even older and more difficult question.Adult immigrants who
learn a second language rarely achieve the same proficiency in a foreign language as the average child raised
as a native speaker. Researchers have long suspected there is a"critical period"for language development,
after which it cannot proceed with full success to fluency.Yet we still do not understand this critical period or
know why it ends.
What aspect of the adopted children's language development differed from that of US-born children?
A.The rate at which they acquired language.
B.Their first words.
C.The way they learnt English.
D.The point at which they started producing sentences.
[判断题]机上案(事)件处置工作中,自行书写证言的,应告知书写人写明时间并签名,经其同意,留下联系方式。
A.正确
B.错误
[填空题]处理活塞式压缩机某级压力降低的措施是()。
[单项选择]()是管网调度系统的指挥中心。
A. 数据采集与通讯网络系统
B. 数据库系统
C. 调度决策系统
D. 调度执行系统
[单项选择]全段围堰导流法包括明渠导流、隧洞导流和( )
A. 涵管导流
B. 永久建筑物导流
C. 厂房导流
D. 束窄河床导流
[单选题]下列选项中,不属于不安全行为产生的原因是( )。
A.知识与技能缺陷
B.思想情绪不稳定
C.身体状况不佳
D.机电设备故障
[多选题]关于高处作业防护设施说法正确的是()。
A.铁塔组立时应设置临时攀登用保护绳索
B.变电工程高处作业推荐使用高空作业车
C.高处作业区附近有带电体时,应使用钢制梯
D.导地线不能落地压接时,应使用高处作业平台
E.略
F.略
[填空题]They (excite) ______ about seeing their parents again.
[单选题]在摇测绝缘时,应使绝缘电阻表保持额定转速,一般为( )。
A.120r/min
B.100r/min
C.160r/min
D.180r/min
[单项选择]在设计测试用例时,应遵循()原则。
A. 仅确定测试用例的输入数据,无须考虑输出结果
B. 只需检验程序是否执行应有的功能,不需要考虑程序是否做了多余的功能
C. 不仅要设计有效合理的输入,也要包含不合理、失效的输入
D. 测试用例应设计得尽可能复杂
[判断题]遇有更换故障机车时,工长须做好人员调整,遇有通过列车技术检查与机车连挂交叉作业时,工长根据具体情况,按照正点开车的原则,作出合理安排。( )
A.正确
B.错误
[单选题]患病率通常用来表示
A.病程短的慢性病的发生或流行情况
B.病程长的慢性病的发生或流行情况
C.病程短的传染病的发生或流行情况
D.暴发疾病的发生和流行情况
E.流行疾病的发生和流行情况
[多选题]脚手架及其地基基础应在________阶段进行检查与验收。
A. 每搭设完 6M-8M 高度后
B. 达到设计高度后
C. 作业层上施加荷载前
D. 基础完工后及脚手架搭设前
E. 停工超过 28 天
[单选题]某LGJ-300的线路,几何均距为6米,导线的计算外径为25.2mm,其电阻值为(____)。
A.0.13Ω/km
B.025Ω/km
C.0.24Ω/km
D.0.5Ω/km
[判断题]严禁在调车作业中携带手机和做与调车作业无关的事。( )
A.正确
B.错误
[单选题]依据《中国南方电网有限责任公司电力安全工作规程》(Q/CSSG 510001-2015)第10.2.8条规定:在SF6电气设备室低位区应安装能报警的氧量仪和SF6气体泄漏警报仪。这些仪器应定期试验,保证完好。进入SF6电气设备低位区域电缆沟工作,应先检测含氧量( )和 SF6气体含量。
A.不低于 18%
B.不低于 28%
C.不低于 38%
D.不低于 48%
[单项选择]李女士,53岁,放置宫内节育器20年,现绝经1年,到门诊要求取出节育器。妇科检查:外阴发育正常,已婚已产型;阴道通畅,黏膜略平滑,分泌物无色、量少;宫颈光滑,大小正常;宫体前倾前屈位,正常大小,活动良好;双附件未触及异常。该妇女在取器前应进行的必要检查是()。
A. 血常规检查
B. 心电图检查
C. 阴道涂片检查
D. 腹部CT检查
E. 妇科B超检查
[单项选择]知情同意原则是指临床医师在为病人作出诊断和治疗方案后,必须向病人提供包括诊断结论、治疗决策、病情预后及诊治费用等方面真实、充分的信息,尤其是诊疗方案的性质、作用、依据、损伤、风险、不可预测的意外及其他可供选择的诊疗方案及其利弊等信息,使病人或家属经深思熟虑自主作出选择,并以相应方式表达其接受或拒绝此种诊疗方案的意愿和承诺;在得到患方明确承诺后,才可最终确定和实施由其确认的诊治方案。 根据上述定义,下列违反了知情同意原则的是:
A. 医生向白血病患儿的家属交代了骨髓移植手术的作用、风险、预后及花费等情况,家属在讨论后,决定在手术同意书上签字
B. 医生向患者交代了目前患者可以选择的两种治疗方案,但患者和家属由于文化水平低,并未听懂,因此让医生替他们做决定
C. 某患者在进行检查前,医生将检查的用处以及可能存在的风险向患者告知,患者晴示清楚,但非常关心检查的费用是否报销,在得知是自费检查时,拒绝了该项检查
D. 某患者在化疗前,医生提供了两种可供选择的方案,一种是效果较好但昂贵的进口药,一种是效果稍差但便宜的国产药,家属和患者的意见不一致,请医生帮他们拿主意,在医生的耐心解释下,患者是以家属终于达成了共识
[单选题] ( )的所有造型,都有一定的动势。
A.插花花艺作品
B.切花生产
C.切花贮藏
D.花材运输
[单项选择] It’’s hardly news that the immigration system is mess. Foreign nationals have long been slipping across the border with fake papers, and visitors who arrive in the U.S. legitimately often overstay their legal welcome without being punished. But since Sept. 11, it has become clear that terrorists have been shrewdly factoring the weaknesses of our system into their plans. In addition to their mastery of forging passports, at least three of the 19 Sept. 11 hijackers (劫机者) were here on expired visas. That’’s been a safe bet until now. The Immigration and Naturalization Service (INS) (移民归化局)lacks the resources, and apparently the inclination, to keep track of the estimated 2 million foreigners who have intentionally overstayed their welcome.
But this laxness(马虎) toward immigration fraud may be about to change. Congress has already taken some modest steps. The U.S.A. Patriot Act, passed in the wake of the Sept. 11 tragedy, requires the FBI, the Justice Department, the State Departm
A. refuse the renewing of expired visas
B. ward off terrorist suspects at the border
C. prevent the forgery of immigration papers
D. limit the number of immigrants to the U.S.
[单选题]干燥机跳停后会触发哪个联锁()
A.I-216
B.I-217
C.I-218
D.I-219
[判断题]《承包商井控违规责任追究》,现场未按工程设计要求储备重钻井液或加重材料储备量低于设计要求的,追究井队所属承包商违约责任,违约金5万元人民币。
A.正确
B.错误
[单项选择]液化石油气由液相变为气相时,体积扩大约( )倍。
A. 100
B. 150
C. 200
D. 250
[不定项选择题]胃体胃炎的主要特点是
A.胃酸降低
B.贫血
C.胃酸分泌升高
D.两者均无
E.胃酸分泌升高和贫血
[判断题]《刑法》第一百八十七条规定,银行或者其他金融机构的工作人员吸收客户资金不入账,数额巨大或者造成重大损失的,处五年以下有期徒刑或者拘役,并处二万元以上二十万元以下罚金。( )
A.正确
B.错误
[填空题]
{{B}}PART ONE{{/B}}
·Look at the statements and the short news
below.
·Which news does each statement 1—7 refer to.
·For each sentence,
mark one letter A, B, C or D oh your Answer Sheet.
·You will need to some of
the letters more than once.
{{B}}A{{/B}}
The Santa Cruz Operation Incorporate (SCO), a US-based software
developer, opened a representative office in Beijing yesterday.
Founded in
1979, SCO has become the world’s leading developer and supplier of software for
UNIX systems. The new office in Beijing will bring SCO closer to Chinese
customers and help it understand the massive Chinese market better, said Lars
Turndal, SCO’S president and chief executive officer. SCO will mainly target
government, departments, key industries and service
institutions.
{{B}}B{{/B}}
US computer giant International Business Machines
(IBM) last week announced that it will invest at least $100 million in
information technology projects in Ch
[单项选择]态度的内化是指()。
A. 个体真正从内心相信并接受他人的观点,并使之纳入自己的态度体系,成为有机的组成部分。
B. 个体采用他人观点、信息或群体规范,使自己与他人一致
C. 个体按社会规范和社会期待或他人意志在外显行为方面表现与他人一致
D. 个体以理智与情感,即认知和情感为基础习得一定的态度
[单项选择]
许多网络通信需要进行组播,以下选项中不采用组播协议的应用是 (38) 。在IPv4中把 (39) 类地址作为组播地址。
(38)处填()。
A. VOD
B. Netmeeting
C. CSCW
D. FTP
[多选题]运行人员发现运行中的刀闸发生下列情况之一应立即向相关调度员汇报( )。
A.
刀闸支持或传动瓷瓶损伤或放电
B.
刀闸动静触头或连接头发热或金具损坏
C.
刀闸在操作过程中发生拉不开或合不到位
D.
操作连杆断裂,支持瓷瓶断裂