热门试题:
[判断题]大额灵活通存款产品支持多次存入,多次支取,支取时按后进先出原则进行支取。( )
A.正确
B.错误
[单选题]在Word2007中,下列说法不正确的是(____)。
A.标尺有水平标尺和垂直标尺
B.使用标尺可以快速设置页边距
C.使用标尺可以快速设置段落格式
D.按Ctrl键,在拖动标尺上的首行缩进标志,可精确设置首行缩进值
[单项选择]
筛分是集料的一项常规而重要的试验,筛分过程中:
①要根据公称最大粒径的大小决定每次筛分所需的数量;
②无论采用人工筛分还是机械筛分,最终都要对每个筛子单独进行筛分,以确定筛分是否彻底;
③当各筛上的存留量之和小于筛分原称重质量时,该筛分应重新进行;
④筛分结果可通过分计筛余、累计筛余和通过量来表示;
⑤采用累计筛余计算出的细度模数来表示集料颗粒的粗细程度。
指出上述描述中有几处错误。()
A. 一处
B. 两处
C. 三处
D. 四处
[单选题]睡眠时维持角膜代谢的氧气主要由( )血管内含氧量高的血液替代供应。
A.玻璃体
B.睑结膜
C.空气
D.晶状体
[单项选择]以下手术中需术前使用抗生素的是:()
A. 甲状腺腺瘤切除术
B. 疝修补术
C. 直肠癌根治术
D. 戳肢术
E. 胃溃疡胃大部切除术
[判断题]煤矿企业的应急救援预案就是《矿井灾害预防和处理计划》。()
A.正确
B.错误
[单选题]发动机飞轮一般都进行( )平衡,其方法是在平面或圆拄面上钻孔以取得平衡。(中)
A.静
B.动
C.动或静
D.不动
[单选题]旅客购买卧铺票时,必须有( )。
A.加快票
B.软座或硬座客票
C.空调票
D.附加票
[单选题]闸板防喷器是井口防喷器组的(?? )组成部分。
A.多余
B.重要
C.次要
D.可选
[单选题]1940年,日本军国主义政府是不是下令日本奥委会放弃主办权? ( )
A.是
B.不是
[单项选择]人本管理要求遵循的原则是()
A. 整分合原则
B. 反馈原则
C. 能级原则
D. 弹性原则
E. 价值原则
[多项选择]使用扳手检修时,其与接触部分不得粘有()
A. 油脂
B. 黄油
C. 机油
D. 水
[判断题]灭火防护服使用年限一般为15年。
A.正确
B.错误
[单选题]紧急牵引时,列车限速( )km/h。
A.15
B.20
C.25
D.30
[判断题]QDII使得内地居民可以投资于境外资本市场。
[单选题]防流感的棉纱口罩,棉纱层数必须达到( )层。
A.8 层
B.12 层
C.16 层
D.24 层
E.32 层
[单项选择]The homeless make up a growing percentage of America’s population. (62) homelessness has reached such proportions that local government can’t possibly (63) .To help homeless people (64) independence, the federal government must support job training programs, (65) the minimum wage, and fund more low-cost housing. (66) everyone agree on the numbers of Americans who are homeless. Estimates cover (67) from 600,000 to 3 million. (68) the figure may vary, analysts do agree on another matter: that the number of the homeless is (69) , one of the federal government’s studies (70) that the number of the homeless will reach nearly 19 million by the end of this decade.
Finding ways to (71) this growing homeless population has become increasingly difficult. (72) when homeless individuals manage to find a lodging that will give them three (73) a day and a place to sleep at night, a good
A. Now that
B. Although
C. Provided
D. Except that
[单选题]注射丙种球蛋白的免疫属于 () ? ( 1.0 分)
A.自然免疫
B.自动免疫
C.自然被动免疫
D.人工被动免疫
E.人工自动免疫
[单选题]各单位要严格执行集团公司有关规定,加强实物采购预算的编制及计划归集,严格控制小批量零星物资采购规模,按()上报小批量零星物资采购明细。
A.季度
B.每旬
C.月度
D.每周
[多选题]临时遮栏可用( )制成,装设应牢固,并悬挂“止步,高压危险!”的标示牌。
A.干燥木材
B.橡胶
C.不锈钢
D.其他坚韧绝缘材料
[单选题]离心泵密封环的形状大致分为三种:普通圆柱密封、迷宫形密封环、()密封。
A.平接式
B.单曲迷宫式
C.锯齿形
D.双曲迷宫式
[单项选择]贸易融资的期限不得超过1年,具体期限可由融资双方根据融资用途、客户风险承受能力和经营发展特点、以及中国农业发展银行信贷政策等确定。一般情况下,打包放款、出口贴现、出口发票融资和出口信用保险项下贸易融资不超过()个月。
A. 3
B. 6
C. 9
D. 12
[单选题]国际通用的火光求救信号是( )。
A.以等腰三角形点燃的三堆火焰
B.英文字母SOS
C.红色圆圈
D.小方块
[单选题]人民警察遇有犯罪分子失去继续实施犯罪能力的,( )使用武器。
A.可以继续
B.应当立即停止
C.可以停止
D.应当继续
[单选题]落地式光缆交接箱的基础应高出地面()cm。
A.60
B.50
C.40
D.30
[单选题]关于正常颅压性脑积水的临床表现,说法错误的是( )
A.步态不稳为首要症状
B.记忆力障碍
C.恶心呕吐常伴有头痛
D.自发性和主动性活动下降
[判断题]触电者心跳、呼吸停止的,立即就地迅速用心肺复苏法进行抢救。
A.正确
B.错误
[判断题]特别重大事故以下等级事故,事故发生地与事故发生单位不在同一个县级以上行政区域的,由事故发生单位所在地人民政府负责调查,事故发生地人民政府应当派人参加。( )
A.正确
B.错误
[填空题]上脚手架后首先将安全带挂在固定物件上,安全带按( )的原则拴挂,挂好后才解防坠器,移动过程中不得失去( )。
[判断题]多小组工作,工作负责人应在得到主要小组负责人工作结束的汇报后,方可与工作许可人办理工作终结手续。
A.正确
B.错误
[简答题]电缆线路故障测寻时,用绝缘电阻表测量电缆A-地、B-地、C-地的绝缘电阻值,测量时另外两相(____),以判断是否为接地故障。
[不定项选择题]共用题干
第二篇
Sleep Necessary for Memories
Burning the midnight oil before an exam or interview does harm to the performance
according to a recent research which found that sleep is necessary for memories to be taken
back into the brain.A good night's sleep within 30 hours of trying to remember a new task is
a required condition of having good recall in the weeks ahead,scientists have found.
The research,published in the December issue of Nature Neuroscience,showed that
it was the act of sleep,rather than the simple passage of time,that was critical for long-
term memory formation.
"We think that getting that first night's sleep starts the process of memory consolidation
(巩固),"said Robert Stickgold, a sleep researcher at Harvard Medical School who
conducted the latest study.
"It seems that memories normally wash out of the brain unless some process nails them
down.My suspicion is that sleep is one of those things that does the nailing down,"
Professor Stickgold said.
With about one in five people claiming that they are so chronically short of sleep that it
affects their daily activities,the latest work emphasizes the less well-understood side
effect一 serious memory impairment(损害).
Volunteers in an experiment found it easier to remember a memory task if they were
allowed to sleep that night.But for those kept awake,no amount of subsequent sleep
made up for the initial loss.
Professor Stickgold's team trained 24 people to identify the direction of three diagonal
(斜线形的)bars flashed for a sixtieth of a second on a computer screen full of horizontal
(水平的)stripes.
Half of the subjects were kept awake that night,while the others slept.Both groups
were allowed to sleep for the second and third nights to make up for any differences in
tiredness between the volunteers.
Those who slept the first night were significantly and consistently better at remembering
the task while the second group showed no improvement despite enjoying two nights of
catch-up sleep.
Those who slept the first night
A.couldn't remember the task.
B.could not sleep the second and third nights.
C.performed slightly befter than those who did not.
D.did much better than those who did not.
[单项选择]化学毒物进入机体时的吸收程度
A. 消除率
B. 消除半减期
C. 曲线下面积
D. 表观分布容积
E. 生物利用度
[单选题] 客车穿管配线,允许装入同一钢管内的是( )。
A.交、直流输电线
B.电压等级不同的输电线
C.三相四线制的四根输电线
D.电力线与广播配线
[单项选择]X线摄片见股骨下端有骨质破坏,边界不清及骨膜反应,应考虑诊断为()
A. 急性骨髓炎
B. 化脓性关节炎影响股骨下端
C. 骨恶性肿瘤
D. 骨结核
E. 类风湿关节炎
[判断题]增大螺旋角会使齿轮啮合的重合系数增加,工作平稳,噪声降低。
[单项选择]设有定义:int n=0,*p=&n,**q=&p;则以下选项中,正确的赋值语句是( )
A. p=1
B. *q=2;
C. q=p;
D. *p=5;
[单项选择]以城市房地产或者乡镇、村企业的厂房等建筑物抵押的,办理抵押物登记的部门为()
A. 县级以上地方人民政府规定的部门
B. 土地管理部门
C. 房地产管理局
D. 工商行政管理局
[单选题]跌落式熔断器上桩头带电,需在下桩头新装、调换电缆终端在出线或吊装、搭配接电缆终端头及引出线时,应使用(),并采用绝缘罩将跌落式熔断器上桩头隔离,在下桩头加装接地线。
A.工具
B.绝缘工具
C.常用工具