热门试题:
[单选题]下列不是降低线损的建设措施的是( )。
A.对电网进行升压改造
B.合理配置电力电容器
C.采用节能变压器
D.增设无功补偿装置
[单项选择]女性,31岁。因低热、乏力、月经不调2月就医。胸部X线摄片见右下叶背段团块状影伴透亮区。为判断本例结核病的活动性,下列哪条最有意义()
A. X线示浸润性病变
B. X线上有空洞存在
C. 血沉增高
D. 临床症状
E. 痰结核杆菌检查阳性
[判断题]一个人在单位与同事关系差,与领导又处不好,换了单位后人际关系仍旧紧张,说明他的社会健康水平很低。
[单项选择]被甲类传染病病原体污染的污水、污物、粪便,有关单位和个人必须按照以下规定进行处理()
A. 在医疗机构的指导监督下进行消毒处理
B. 在卫生防疫机构指导下进行消毒处理
C. 自行进行严密消毒后处理
D. 南卫生防疫机构进行消毒处理
E. 在卫生防疫机构的指导监督下进行严密消毒后处理
[单选题]不过,科技带来的媒介变革颠覆了我们曾经引以为荣的生存意义。追求真理曾是数千年人类文明所孜孜以求的终极意义。人类就是在这种不断试错的过程中向真理逼近。然而,博客世界里没有真理,也不好这一口。每个人都是自己的佛,没有什么可以供你去信奉。 更可气的是,个人主导的率性而自由的博客世界,居然建立起比传统媒体更加可靠的“公信力”。因为在博客里不用对任何别的东西负责,所以才更要对自己负责,更要对内心的真实负责,更接近真理。这段文字主要要说明( )。
A.媒介变革颠覆了我们曾经引以为荣的生存意义
B.追求真理曾是数千年人类文明所孜孜以求的终极意义
C.博客世界里不追求真理
D.博客具有比传统媒体更加可靠的“公信力”
[简答题]你所在单位要组织一个六人调查小组,到青海省某县搞一次关于农民收的调查。如果此项活动由你具体负责,你准备如何组织实施?
[多选题]多项选择题:影响视图数量的因素通常有( )。
A. 表达形式是否合理恰当
B. 借助尺寸标注
C. 主视图的投影方向
D. 主视图的表达方式
[单选题]如果超声波频率增加,则一定直径晶片的声束扩散角将 ( )。
A.减小
B.不变
C.增大
D.随波长均匀变化
[判断题]三相五柱式电压互感器广泛用于电压测量和绝缘监察装置,因此它能测量单相接地零序电压。
A.正确
B.错误
[单项选择]专责监护人不得兼做其他工作,临时离开时,应通知()停止作业或离开作业现场。
A. 作业人员
B. 班技术员
C. 班安全员
D. 班质量员
[判断题]原子时的秒长与世界时的秒长不等,大约每年差1秒
A.正确
B.错误
[多选题][043]SFC型扣件弹条种类分为( )。
A.A、A.FC1504型
B.B、B.FC1503型
C.C、C.FC1502型
D.D、D.FC1306型
[单选题] 砂轮应装有用( )制成的防护罩,其强度应保证当砂轮碎裂时挡住碎块。
A.木板
B.钢板
C.铝塑板
D.树脂板
[单选题]日常生活中,有些人喜欢用汤泡饭吃。对此,专家指出,
这种吃饭方式是不可取的。以下哪项说法如果为真能支持专家的观点?
A.用汤泡饭吃,可加快饭菜通过咽喉、食管进入胃的速度
B.用汤泡饭吃有助于防止便秘
C.有些食物代谢产物溶解度低,容易在尿中析出,因此吃完饭后要大量喝汤
D.用汤泡饭吃,会使消化系统的各道工序都乱了套,影响食物的消化
[判断题]部分专业随着人员的变化,会经常性反映本专业岗级太低,各单位人资部门可结合实际工作需要,对变动的岗位进行岗位价值评估,根据评估结果对本专业岗级进行调整。
A.正确
B.错误
[单项选择]某残疾旅客携带旅行包1只,26kg;代步的折叠式轮椅1只,23kg,到站应补收()kg的超重运费。
A. 6
B. 26
C. 30
D. 25
[单选题]按照《民用航空安全检查工作手册》,下列选项不属于民航安检员通行管制岗位职责的是( )。
A.核验车辆的机场控制区通行证件,检查车辆,确认是否含有民航禁限运输物品;
B.对采取通行管制的区域实行区域管控措施;
C.依规处置违规通行人员并做好登记工作;
D.查验通行人员的机场控制区通行证件或者有效乘机凭证。
[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 is the writer's main purpose in Paragraph 2?
A.To reject the view that adopted children need two languages.
B.To argue that culture affects the way children learn a language.
C.To give reasons why adopted children were used in the study.
D.To justify a particular approach to language learning.
[单选题]依据《江苏省国有资金投资工程建设项目招标投标管理办法》,对于评标委员会成员的确定,下面说法正确的是()。
A.在省综合专家库人数不足的情况下,招标人可以指派本单位人员补充
B.必须在省综合评标专家库中的本地区专家单中随机抽取确定
C.省综合评标专家库中专家数量达不到随机抽取数量要求的,招标人可以自行邀请评标专家,但应当优先从国家综合评标专家库中邀请
D.省综合专家库人数不足的情况下,可以联系邻省的专家库继续抽签补足。
[单项选择]The first moving-picture theater was probably the work of Harry Davis, Pittsburgh’s most prosperous showman. In 1904, he rented a storefront, filled the room with chairs, gaily decorated the exterior, and advertised the (67) of a "nickelodeon". It was a(n) (68) success.
Although Davis was the first one to use the name nickelodeon, (69) experiments were taking place in other parts of the country. (70) the country, vaudeville (杂耍) managers, traveling exhibitors, and show businessmen (71) their jobs to set up their own nickel picture (72) . There was a great deal of money (73) in the business, but nickelodeon owners had to work hard to (74) their product. They could not afford to advertise (75) in the papers, but they could and (76) design their storefront facades to call attention to their shows--with oversized (77) , attraction boards, posters, and as many light bulbs as they had (7
A. similar
B. different
C. flexible
D. identical
[多选题]下列各账户中,只需反映金额指标的有()。
A.资本公积总账
B.原材料明细账
C.应付账款明细账
D.应收股利总账
[单选题]车削箱体类零件上的孔时,如果车床导轨严重磨损,车出的孔会产生( )误差。
A.粗糙度
B.圆柱度
C.圆度
D.同轴度
[多项选择]建筑新技术、新工艺和新材料应用方案经济分析常用的静态分析方法有()
A. 增量投资内部收益率法
B. 增量投资收益率法
C. 净年值法
D. 折算费用法
E. 综合总费用法
[单选题]A、B是局域网上相距1km的站点, A 采用同步传输方式以 1Mb/s的速率 向 B 发送 长度为 200,000 字节的文件。假定数据帧长为 128 比特,其中首部为 48 比特: 应答 帧为 22 比特, A 在收到 B 的应答帧后发送下一帧。有 效的数据速率为( )Mb/s(传播速率为200m/us)
A.0.2
B.0.5
C.0.7
D.0.8A
[单选题]《铁路旅客运输规程》(铁运〔1997〕101号)规定,对于在列车内寻衅滋事,扰乱公共秩序的旅客,列车工作人员可()下车。
A.责令
B.强制
C.命令
D.通告
[单选题]动脉粥样硬化最早期病变是( )。
A.纤维斑块
A.粥瘤
B.脂纹
C.钙化
D.溃疡形成
[单选题] 特殊气候条件下,如雷雨、大雾、大风等天气时,现场检查人员应避免()巡视工作。
A.设备
B.户外设备
C.高压设备
D.低压设备
[单选题]A380飞机额定载客量为
A.800
B.506
C.500
D.505
[单项选择]国际平整度指数(IRI)的标准测定速度为()。
A. 40km/h
B. 60km/h
C. 80km/h
D. 100km/h
[单选题]一般情况下,领取爆破器材限于当天的爆破作业需要。( )
A. 正确
B. 错误
[单项选择]下列不属于跨境电商的是()
A. 速卖通
B. 敦煌网
C. 马可波罗网
D. 环球资源网
[判断题]电流通过人体,对人的危害程度与通过人体的途径有密切关系。
A.正确
B.错误
[判断题]压缩气体钢瓶或者油桶库房着火,必须在充分冷却,确认无爆炸危险后,方能深入内部设置水枪阵地。( ) (中)3
A.正确
B.错误