热门试题:
[单选题]刚好使导线的稳定温度达到电缆最高允许温度时的载流量,称为()。
A.额定载流量
B.最大载流量
C.允许载流量
[配伍题](1).长期应用长春新碱易引起的特有毒性反应为：（）|(2).长期应用博来霉素易引起的特有毒性反应为：（）|(3).长期应用环磷酰胺易引起的特有毒性反应为（）|(4).长期应用多柔米星易引起的特有毒性反应为（）
A. 心肌退行性病变和心肌间质水肿
B. 呼吸系统肺纤维化
C. 肝脏毒性
D. 外周神经毒性
[多选题] 割炬按可燃气体与氧气混合的方式不同可分为( )等。
A.射吸式割炬
B.普通割炬
C.等压式割炬
D.重型割炬
E.焊、割两用式割炬
[单选题]完全流产的处理是
A.肌注黄体酮
B.肌注HCG
C.测凝血功能
D.刮宫术
E.观察，随访
[判断题]车辆长时间停留后，轴温降低，润滑油粘度加大，故摩擦阻力也增大。
A.正确
B.错误
[单项选择]如果要想使某个幻灯片与其母版的格式不同，可以（）。
A. 更改幻灯片版面设置
B. 设置该幻灯片不使用母版
C. 直接修改该幻灯片
D. 修改母版
[判断题]表盘封面玻璃破裂或表盘刻度模糊不清的压力表可以继续使用。( )
A.正确
B.错误
[不定项选择题]共用题干
The Bilingual Brain
When Karl Kim immigrated to the United States from Korea as a teenager,he had a hard time learning English.Now he speaks it fluently, and he had a unique opportunity to see how our brains adapt to a second language.As a graduate student, Kim worked in the lab of Joy Hirsch, a neuroscientist in New York Their work led to an important discovery.They found evidence that children and adults don't use the same parts ofthe brain when they learn a second language.
The researchers used an instrument called an MRI(magnetic resonance imaging)scanner to study the brains of two groups of bilingual people.One group consisted of those who had learned a second language as children.The other consisted of people who,like Kim,learned their second language later in lite.Peoplefrom both groups were placed inside the MRI scanner ,This allowed Kim and Hirsch to see which parts of thebrain were getting more blood and were more active.They asked people from both groups to think about whatthey had done the day before ,first in one language and then the other.They couldn't speak out loudbecause any movement would disrupt（干扰）the scanning.
Kim and Hirsch looked specifically at two language centers in the brain-Broca' s area, which isbelieved to control speech production,and Wernicke's area,which is thought to process meaning.Kim andHirsch found that both groups of people used the same part of Wernicke's area no matter what language theywere speaking.But their use of Broca's area was different.
People who learned a second language as children used the same region in Broca's area for both tneir first and second languages.People who learned a second language later in life used a different part of Broca's area for their second language.How does Hirsch explain this difference?Hirsch believes that when language is first being programmed in young children,their brains may mix the sounds and structures of all languages in the same area.Once that programming is complete,the processing of a new language must be taken over by adifferent part of the brain.
A second possibility is simply that we may acquire languages differently as children than we do asadults.Hirsch thinks that mothers teach a baby to speak by using different methods involving touch,sound and sight.And that is very different from learning a language in a high school or college class.
How did Kim and Hirsch study the brains of two groups of bilingual people?
A.They interviewed them in English and Korean.
B.They asked them to speak the same language.
C.They used an MRI scanner to observe their brains.
D.They asked them to talk about what they had done the day before.
[判断题]判断题:某建筑公司,为了安排下岗职工就业,在集镇路边30m2房间内,开了一个电气焊修理门市部。为了节约资金,焊机用的是已停用一年的旧机,一次测电源用的是闸刀开关,并安装在室内,门口路边就是焊接与切割场所。室内既是焊切工具、氧气瓶、乙炔瓶的储存间,又是工人中午吃饭休息的场所。公司对工人只进行了短期培训,便开业。上述施工企业的是为了安排下岗职工就业的行为,公司对职工的培训可以不和其他职工的培训一样,不受限制。( )
A.正确
B.错误
[单选题]CDC-16k型道岔捣固车有( )套各自独立的基础制动装置。
A.1
B.2
C.3
D.4
[单选题](1693854)垫圈24-140HV表示:该紧固件名称是垫圈,( )。
A.外径尺寸为24mm,安全等级为140HV级
B.外径尺寸为24mm,性能等级为140HV级
C.公称尺寸为24mm,安全等级为140HV级
D.公称尺寸为24mm,性能等级为140HV级
[单项选择]肝移植手术开放下腔静脉半小时后可能出现下列哪些情况（）
A. 体温下降
B. 低血钾
C. 代谢性碱中毒
D. 低血糖
E. 以上均是
[判断题]列车故障需要救援时，通知故障车救援目的地，得到故障列车司机允许动车指令后动车，限速20km/h推进运行途中加强与故障列车司机联系，发现异常紧急停车。若牵引运行时，限速25km/h运行。（ ）
A.正确
B.错误
[简答题]作业时（ ）必须了解周边环境和风险，熟悉应对突发事件的处置程序。
[单项选择]“诗界革命”的口号出现于( )。
A. 鸦片战争时期
B. 洋务运动时期
C. 戊戌变法时期
D. 辛亥革命时期
[判断题]799/1137 在电阻并联的电路中,电路的端电压U等于各并联电阻的端电压。
A.正确
B.错误
[多选题]液化石油气泄露处置程序和措施包括( )
A.稀释防爆
B.关阀堵漏
C.输转倒罐
D.主动点燃
[多项选择]下列选项中，关于我国“十一五”规划编制的时代背景的叙述正确的是( )。
A. “十一五”规划是我党提出全面建设小康社会宏伟目标后编制的第一个五年规划
B. “十一五”规划是党中央提出科学发展观重大战略思想后编制的第一个五年规划
C. “十一五”规划是社会主义市场经济体制趋于完善的背景下编制的规划
D. “十一五”规划是经济全球化趋势增强，我国加入世界贸易组织过渡期即将结束背景下编制的规划
E. “十一五”规划是在我国发展进入新阶段的背景下编制的规划
[单项选择]28岁经产妇，前两次妊娠患妊娠期高血压，娩出的胎儿体重4200g，且娩出后不久死亡。现妊娠20周，血压150/90mmHg，尿糖阳性，下肢水肿。本例应进行的辅助检查项目是（）
A. 检查空腹血糖值
B. 测定基础代谢率
C. 胸部X线摄片
D. 检查尿沉渣有无管型
E. 检测肝功能
[判断题]举高类消防车警报通讯系统由警灯和电子报警器组成。(易)( )
A.正确
B.错误
[单项选择]慢性肺源性心脏病发生的关键环节是（）。
A. 肺间质纤维化
B. 肺气肿
C. 肺动脉高压
D. 肺动脉分支血栓栓塞
E. 肺阻塞性通气障碍
[单项选择]从2008年7月1日至2009年1月1日该类住宅楼市场价格每月递增1.5%，其后至2009年11月1日则每月递减0.5%，而从2009年11月1日至2010年4月30日的市场价格基本不变，以后每月递增1%。估价人员拟从以下几个交易实例中选取三个作为可比实例，并估算该住宅楼2010年8月31日的正常单价。(如需计算平均值，请采用简单算术平均)。
| 实例 | A | B | C | D | E |
| 成交价格(元/m2) | 5100 | 5800 | 5200 | 5300 | 5000 |
| 成交日期 | 2009.11.30 | 2010.6.30 | 2010.1.31 | 2008.7.31 | 2010.5.31 |
| 交易情况 | +2% | +21% | 0 | 0 | -3% |
| 房地产状况 | 区位状况 | 0 | -3% | +3% | +1% | 0 |
| 权益状况 | -2% | 0 | +2% | -1% | -1% |
| 交易实物 | -4% | -5% | -2% | +2% | +1% |
注：房地产状况中的三方面因素产
A. 100/98
B. 100/101
C. 98/100
D. 101/100
[判断题]10kV、35kV、110kV、220kV、500kV电压等级对应的工作人员正常活动范围与带电设备的安全距离分别为：0.7m、1.0m、1.5m、3m、5m。
A.正确
B.错误
[填空题]Chimp (黑猩猩) Show Hallmark of Human Culture, Study Finds
Researchers have discovered that chimpanzees not only teach each other new and useful behaviors, but conform to their group’s preferred techniques for performing them--a hallmark of human culture.
Observers have previously reported that wild chimps demonstrate more than three dozen different behaviors that have no apparent ecological or genetic origin. This diversity suggests that there are distinct ape cultures.
The notion assumes that chimps transmit culture--teaching and learning behaviors generation after generation. But the theory is very difficult to test and prove in a controlled experiment outside of a laboratory.
So researchers at the University of St. Andrews in Scotland and Emory University in Atlanta devised an experiment to test the proposition. The results were published online August 21 in the science journal Nature.
Learning and Teaching
The scientists constructed
[判断题]培训是提高反恐工作人员技能的一种重要手段。( )
A.正确
B.错误
[单项选择]女，22岁，胸背部及头皮下多发红色丘疹状突起，伴头痛，听力下降半年，行头颅MRI平扫及增强扫描如图，最可能的诊断为（ ）
A. 听神经瘤
B. 三叉神经瘤
C. 脑膜瘤
D. 神经纤维瘤病NF-Ⅱ型
E. 蛛网膜囊肿
[单选题]货物列车包括：快速货物班列、快运、（）、直达、直通、冷藏、自备车、区段、摘挂、超限及小运转列车等。
A.
B.特运
C.行包
D.重载
E.特种
[多选题]现场勘察应查看检修（施工）作业需要停电的范围、保留的带电部位、装设接地线的位置、（）、自备电源、地下管线设施和作业现场的条件、环境及其他影响作业的危险点。
A.开关位置
B.邻近线路
C.交叉跨越
D.多电源
E.lue
[多项选择]脊髓锥体束损害的上运动神经元病变可出现的病理发射可表现为
A. 双侧明显不对称
B. 过于强烈
C. 深反射亢进
D. 浅反射减弱
E. 浅反射消失
[多选题]当一国出现经济过热现象时，中央银行可以采取以下措施（ ）。
A.劝说商业银行减少贷款投放
B.在公开市场上买入国债
C.提高法定存款准备金率
D.提高再贴现率
E.提高利率
[单选题]搬运管子、工字铁梁等长形物件，应注意防止物件甩动，用车推时应绑好。
A.A.正确
B.B.错误
C.略
D.略
E.略
F.略
[单选题]依据生产性粉尘的性质可将其分为3类,这3类中不包括()
A.无机粉尘
B.有机粉尘
C.矿物性粉尘
D.混合性粉尘
[单选题]成人女性红细胞计数（RB
C）的正常参考区间是
A.（6.0～7.0）X1012／L
B.（5.2～7.0）X1012／L
C.（4.2～5.2）X1012／L
D.（4.0～5.5）X1012／L
E.（3.5～5.0）X1012／L
[单项选择]可抑制β内酰胺酶活性（）
A. 氨曲南
B. 头孢氨苄
C. 头孢克洛
D. 克拉维酸
E. 亚安培南
