Experts say children can begin learning
a second language in preschool, and should begin before the age of ten to take
advantage of young children’s natural ability to acquire language. This
advantage is lost by the time most children encounter (遇到) a foreign language in
the classroom, in middle school or high school. Dr. Noble Goss, an assistant professor of Spanish and German at Harding University in Arkansas, says, "As a father of bilingual (双语的) children (My wife is Mexican), A. adults lose interests in foreign language learning B. adults are less confident than children C. adults are afraid of making mistakes in learning foreign languages D. unknown until now [单项选择]以有毒有害气体及粉尘为主的工业企业应建在()。
A. 远离居住区的地方 B. 当地最小频率风向的下风侧 C. 当地夏季主导风向的上风侧 D. 当地主导风向的上风侧 E. 当地夏季最小风频风向的上风侧并远离居住区 [单项选择]对于指令XOR AX,AX和MOV AX,0,下面描述正确的是( )。
A. 均可执行对AX寄存器的“清0”操作,并且执行速度也没差异 B. 均可执行对AX寄存器的“清Q”操作,但MOV AX,0指令的执行速度比较快 C. 均可执行对AX寄存器的“清0”操作,但XOR AX,AX指令的执行速度比较快 D. 两条指令的执行结果不同 [单项选择]
《中华人民共和国船员违法记分管理办法(试行)》适用于() A. ①②③ B. ②③④ C. ①③④ D. ①②③④ [判断题]超声波检测过程中应避免手机、雷达、电动马达、照相机闪光灯等无线信号的干扰。
A.正确 B.错误 [简答题]《技规》规定哪些情况,应停止使用基本闭塞法,改用电话闭塞法行车?
[判断题]根据《固定资产贷款管理暂行办法》规定,固定资产贷款形成不良的,贷款人应对其进行专门管理,及时制定清收处置方案。
A.正确 B.错误 [单选题]三级火警调度:调集( )个中队出动灭火;支队全勤指挥部视情到场指挥处置( )
A.1-2 B.1-3 C.3-5 D.3-8 [判断题]用于扣件式钢管脚手架的旧钢管,其表面锈蚀深度应不大于0.18mm.
A.正确 B.错误 [单选题]浓酸强碱一旦溅入眼睛或皮肤上,首先采用清水进行清洗。( )
A. 正确 B. 错误 [判断题] 吸收比是用兆欧表测定。
A.正确 B.错误 [名词解释]LOW工作站
[单项选择]超声检查常见的胰腺囊肿是()
A. 先天性囊肿 B. 真性囊肿 C. 假性囊肿 D. 滞留性囊肿 E. 寄生虫性囊肿 [单选题]《高速铁路“强基达标、提质增效”工程客运专业标准》中,给商务座旅客送餐时应使用托盘、垫纸,( )应置于托盘左上侧。
A.餐具 B.餐巾纸 C.牙签 D.速溶汤 [判断题]党风问题的实质是权力如何运用的问题。( )
A.正确 B.错误 [简答题]文学形象的特征是什么?
[单项选择]下列资金的运动属于动态表现形式的是( )。
A. 固定资产和流动资产 B. 流动负债 C. 经营性现金流动 D. 所有者权益 [简答题]《铁路旅客运输办理细则》中行李、包裹运输组织原则是什么?
[判断题]事故风机故障时,设备调度员(环控)应通过现有的设备满足隧道及车站的排烟能力。
A.正确 B.错误 [单项选择]电烧伤急救时做法错误的是().
A. 呼吸停止需立即行人工呼吸,直至自主呼吸完全恢复 B. 人工呼吸频率为14~16次/分,胸外心脏按压为100次/分 C. 若患者呼吸心跳停止,瞳孔扩大、固定通常意味脑死亡发生 D. 烧伤初期大量补液并碱化尿液是预防急性肾功能衰竭的有效措施 E. 深部组织损伤坏死,伤口需开放治疗 [单选题]发生煤与瓦斯突出事故后,撤出灾区和( )的人员是抢险救灾的首要任务。
A.进风流 B.回风流 C.受威胁区 [多选题]调整变压器的输出电压以保证用户电压稳定的装置。调压办法是在变压器的高绕组上设置一段有抽头的分接绕组和加装一个()。利用它们可以改变高压绕组的(),即改变变比,从改变变压器的输出电压。
A..分接开关 B.开关 C.匝数 D.线圈 [单选题](2014 年真题)设有支护的基坑土方开挖过程中,能够反映坑底土体隆起的监测项目是( )。
A.立柱变形 B.冠梁变形 C.地表沉降 D.支撑梁变形 [单选题]车辆人员坠水救援时,下面描述不正确的是( )。
A. 现场指挥员应充分评估水域深度及水域状况 B. 现场指挥员应充分评估消防救援人员潜水能力 C. 现场指挥员应充分评估为落水者提供生命支持的可能 D. 现场指挥员应充分评估与其他救援力量协同救援的可能 [单选题]汇票专用章由( )核发。
A.城商行资金清算中心 B.人民银行 C.总行运营管理部 D.分行运营管理部门 [单项选择]一位在工地上工作的工人突然倒地,检查意识丧失,口鼻没有气息,也摸不到脉搏,下列处理中哪项最关键()
A. 立即拨打“120”急救电话求援 B. 立即将患者送到就近医院救治 C. 立即由专业人员现场给予人工呼吸 D. 立即在现场进行心肺复苏及电击除颤 E. 立即呼叫患者并开放气道 [单选题]在规定的试验条件下,引起物质持续燃烧的最低温度称为( )
A. 闪点 B. 燃点 C. 沸点 D. 自燃点 [单选题] 调车机车司机在作业中负责(),保证机车质量良好。
A.操纵调车机车 B.协助车站瞭望 C.整备 [多选题]防冻防凝要根据( )的原则?
A.以班保日、 B.以日保周、 C.以周保月, D.以月保季 [填空题]
The College of Business Management (CBM) is seeking new members to represent the college as Student Ambassadors (大使). The Ambassadors selected will represent the college during the school year. Their term of service will begin during the autumn. Student Ambassadors will have the opportunity to cooperate with students at various activities throughout the school year. [不定项选择题]共用题干
Less Is More
It sounds all wrong-drilling holes in a piece of wood to make it more resistant to knocks.But it works because the energy from the blow gets distributed throughout the wood rather than focusing on one weak spot.The discovery should lead to more effective and lighter packaging materials.Carpenters have known______(51) centuries that some woods are tougher than others.Hickory(山核桃木),for example, was turned into axe handles and cartwheel spokes(轮辐)because it can absorb shocks without breaking. White oak,for example,is much more easily damaged,______(52)it is almost as dense.Julian Vincent at Bathe University and his team were convinced that the wood's internal structure could explain the differences. Many trees have tubular(管状的)vessels that run _______(53) the trunk and carry water to the leaves.In oak they are large,and arranged in narrow bands,but in hickory they are smaller,and more evenly distributed.The researchers_______(54)this layout might distribute a blow's energy throughout the wood,soaking up a bigger hit.To test the idea,they drilled holes 0.65 millimetres across into a block of spruce(云杉),a wood with ________( 55 ) vessels , and found that______( 56 ) withstood a harder knock.______(57)when there were more than about 30 holes per square centimetre did the wood's performance drop off. A uniform substance doesn't cope well with knocks because only a small proportion of the material is actually______(58).All the energy from the blow goes towards breaking the material in one or two places , but often the pieces left ______(59 ) are pristine(未经破坏的). But instead of the energy being concentrated in one place,the holes provide many weak spots that all absorb energy as they break,says Vincent."You are controlling the places_______(60)the wood breaks,and it can then absorb more______(61),more safely."The researchers believe the principle could be applied to any material________(62)example,to manufacture lighter and more protective packaging.It could_______(63)be used in car bumpers,crash barriers and armour for military vehicles,says Ulrike Wegst,a_______(64)at the Max Plank Institute for Mental Research in Stuttgart. But she emphasizes that you______(65)to design the substance with the direction of force in mind. "The direction of loading is crucial,"she says. 52._________ A.or B.although C.and D.despite [单选题]汽车 CAN 总线的两个终端均内嵌了一个 120 欧姆的终端电阻,在断开蓄电池负极的情况下,用万用表测量 CAN-H、CAN-L 之间的电阻,正常值应为( ) 欧姆。
A.50 B.55 C.60 D.80 [判断题]项目管理文档由经办人直接提交文档管理员进行归档。
[填空题]液压传动中,()和()相乘是液压功率。
[多选题]25G型直流供电客车变换器采用( )电压给共线电话、尾灯等供电。
A.AC380V B.DC48V C.DC110V D.DC600V [单选题]下坡路行车中制动突然失效怎样处置?
A.可利用避险车道减速停车 B.越二级挡位减挡 C.挂倒挡迫使停车 D.拉紧驻车制动器减速 [填空题]( )是指航空货运代理人将若干订单发往统一方向的货物,组成一票货物交付给承运人,填写一份( )运单,发到同一目的地站。
[判断题]必须坚持使用钻车上的所有安全闭锁和保护装置,不得擅自改动或甩掉不用。
[单选题]温度应力式无缝线路的固定区长度不得短于( )m。
A.10 B.20 C.30 D.50 E.70 F.75 [单选题]对于超容用户,计算某日的电量,使用( )。
A.最近一次营销发行电量的日平均值; B.用户表日末冻结示数当日与前一日差值; C.最近一次营销发行电量; D.以上都不对。 我来回答: 提交
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