热门试题:
[判断题]专用电话系统20-20®IXP3000数字程控交换机背板电源输入自上而下分别为-48V、RETURN和GNDF（保护地），当-48V输入正常时，亮绿色指示灯。
A.正确
B.错误
[单选题]在滴定分析法测定中出现的下列情况，哪种情况可导致系统误差（ ）
A.滴定时有液溅出
B.砝码未经校正
C.滴定管读数读错
D.试样未经混匀
[单选题]Software engineers apply the principles of software engineering to the design, development, ( ),testing, and evaluation of the software and systems that make computers or anything containing software work.
A.Requirement
B.construction
C.service
D.maintenance
[单项选择]引起小儿疱疹性口腔炎的病原体是（）
A. 腺病毒
B. 合胞病毒
C. 单纯疱疹病毒
D. 流感病毒
E. 柯萨奇病毒
[判断题]接地线、接地刀闸与检修设备之间不得连有断路器(开关)或熔断器。()
A.正确
B.错误
[单项选择]浅圆仓粮温检测点布置原则，在粮堆外围的测温点距粮面、（）、仓壁0.3m～0.5m。
A. 仓顶
B. 仓上
C. 仓心
D. 仓底
[单选题]采集稍加热即成为流动态的化工产品时的采样设备是（）。
A.A、塑料容器
B.B、防爆容器
C.C、耐压容器
D.D、耐热容器
[多项选择]原始凭证的合法性是指其所记载的交易或事项( )。
A. 符合国家法律、法规和政策
B. 符合审批权限和手续
C. 有董事长的核准签章
D. 符合单位的计划、预算与合同
[单选题]固定桥受力时,固位体的受力反应,最确切的说法是
A.负重反应
B.屈张反应
C.内压力
D.屈张力
E.外张力
[单选题]电缆敷设时，必须保证电缆的弯曲半径，单芯电缆为15D，三芯电缆为20D，D为电缆直径。
A.正确
B.错误
[判断题]船体水线下破损的大洞应用堵漏毯外堵。
A.正确
B.错误
[多选题]运行中的隔离开关与其（）间的闭锁装置应完善可靠
A.断路器
B.接地开关
C.电流互感器
D.电压互感器
[单项选择]胫骨后肌（）。
A. 使踝关节背伸、足内翻
B. 使踝关节跖屈、足外翻
C. 使踝关节跖屈、足内翻
D. 使膝关节屈曲、踝关节屈曲
E. 使髋关节屈曲、膝关节屈曲
[不定项选择题]行灯电压不能超过（）伏，在金属容器及潮湿场所的电压不能超过（）伏。
A.12，12
B.36，12
C.12，36
D.36,36
E.以上都对
[单项选择]不属于腹部体表标志
A. 腋前线
B. 腹中线
C. 剑突
D. 腹上角
E. 腹直肌外缘
[简答题]男性病人，61岁，四个月来不明原因排黏液脓血便，不成形。每天4～6次，量不多。近2～3天来感到腹胀。体检：T37.8℃，Bp96/58mmHg，P90次/分，消瘦面容，腹部隆起，无腹肌紧张，压痛但无反跳痛，左下腹可扪及一固定的质硬包块，肠鸣音亢进，移动性浊音阴性，血白细胞10.5×10/L，腹部平片提示结肠胀气。试述诊断及诊断依据、进一步检查项目及治疗原则。
[单项选择]
"I was just like you--I’ thought I was invincible," says Adam Blomberg, standing before 400 students in a darkened auditorium at Miami’s Coral Reef Senior High School. A photo of a bloodied and unconscious teenager, a breathing tube protruding from his mouth, flashes on the wall.
"That was me," he says. There’s a collective gasp before the room grows silent and Blomberg,31, an anesthesiologist who trained at Brigham and Women’s Hospital in Boston, begins the story of what happened one night in February 1995.
He created a presentation illustrating the dangers of behaving irresponsibly in a car, from not buckling up to speeding to driving under the influence of alcohol and drugs. He tracked down photos of teen crash victims from the center’s archives, then incorporated statistics and his own experience. He spoke the first time to a local Boy Scout troop and was soon giving his talk, "A Survivor’s St
A. Teen Driving Risks Are Highest
B. Vehicle Safety Trends Will Drive Interior
C. Road Safety Management and Emergency Response
D. Teaching Teens Safe Driving
[判断题]
The end of financial year is approaching and, with it, the AGM, when we will have to give an account of the year’s proceeding to our shareholders. As usual at this time of year, I am sending a copy of this informal end-of-the-year report to all members of the sales force. I hope that you will all find it useful and that you will let me know if you have any comments. I value your input.
We started this year with a major new product and we really hit the ground running. Our sales for the first quarter of the year were very impressive and, indeed, broke all records. (74) This was particularly heartening as this occurred at a time when many of our competitors were feeling the pinch. Indeed, there was talk among economic experts of an impending recession and even of economic meltdown. Fortunately, this gloom and doom did not materialize.
It was good that we were able to buck the trend, but as I said, we had a major new product and one, indeed, that
[多选题]严寒气候下安全防护方法有()。
A.消防车在火警出动途中,遇有积雪.冰冻的路面时,要控制车速
B.消防人员在面部.手部等裸露的皮肤上涂抹防冻药
C.水枪手应戴好防静电手套;射水灭火时,要避免将水流射到其他人员的身上
D.利用地形地物或架设消防梯登高时,应尽可能避开结冰的部位
[单选题]《物业服务收费管理办法》规定:“酬金制是指在预收的物业服务资金中按约定比例或者约定数额提取酬金支付给物业管理企业,其余全部用于物业服务合同约定的支出,结余或者不足均由( )享有或者承担的物业服务计费方式。”
A.业主大会
B.业主委员会
C.业主
D.物业管理企业
[单项选择]超声检查见宫腔内环状强回声，后伴彗星尾征，应考虑是（）。
A. 子宫内膜增生过长
B. 子宫内膜息肉
C. 子宫肌瘤伴钙化
D. 宫内节育器
E. 子宫内膜癌钙化
[单项选择]在系统转换的过程中，旧系统和新系统并行工作一段时间，再由新系统代替旧系统的策略称为 (48) ；在新系统全部正式运行前，一部分一部分地代替旧系统的策略称为 (49) 。
A. 直接转换
B. 位置转换
C. 分段转换
D. 并行转换
[判断题]精馏过程的损失主要表现在三个方面：气、液流动时的压力降；气、液传热时有温差；气、液传质时存在浓度差。
[判断题]机械清筛，在封锁施工前υm正确x≤45 km／h的慢行时间内，允许移动相邻两根轨枕扩大间距。将道床挖至清筛深度，并使清筛机底梁导槽处钢轨支垫牢固。
A.正确
B.错误
[判断题] 编入特别旅客列车、旅客快车的客车，应100%地加装制动梁吊圆销防护挡。 ( )
A.正确
B.错误
[单选题]大跨度门式起重机械应安装防偏斜装置或偏斜指示装置。防偏斜装置或偏斜指示装置有多种形式,其中,安装在靠近门式起重机的柔性支腿处的应是（ ）。
A.凸轮式防偏斜装置
B.钢丝绳一齿条式偏斜指示装置
C.数字测距式偏斜指示装置
[单项选择]UPS电源系统输入端宜配置相对地、中性线对地保护模式标称放电电流不小于（）的交流电源限压SPD。
A. 25kVA
B. 20kVA
C. 15kVA
D. 10kVA
[多选题]系统中发生()时,禁止操作或手动调节该段母线上的消弧线圈。
A. 单相开路
B. 单相接地
C. 中性点位移电压大于15%Un
D. 中性点位移电压大于10%Un
[多选题]下列属于恶劣天气的有（）。
A.雷雨大风
B.高温
C.暴雪
D.道路结冰
[判断题]轻轻地振动含有硫化氢的液体,不可使硫化氢气体挥发到大气中。
A.正确
B.错误
[填空题]
Learning Tour
Recently, we will hold a learning tour for those English learners. By joining our helpful tour, everyone will find out, at first, specific activities that help to improve your English. Besides that, one can also have access to some interesting language learning materials in the Learning Tour. Moreover, participators will be taught the way to use computers and audio-visual facilities in the center.
The learning tour will be held every Wednesday and Thursday in different time. The former one is from 10:30 to 11: 30am. , while the latter one is 1:00 -2: 00pm.
For registration, people can go to Tin Ping Building on the 4th floor or emall your name, ID card No. and date of joining the tour to Miss Feng at feng@cahk, edu. hk
Information on Learning Tour
By joining the tour, one will find out:
◇
(46) that help to improve your English.
◇ Interesting language learning <
[单选题]( )5要维持一口井处于有控状态，就必须保证适当的（）。
A.钻井液粘度
B.井口压力
C.钻井液切力
D.井底压力
[判断题] BA013柴油机汽缸套的磨损,与润滑油的清洁与否无关。
A.正确
B.错误
[单项选择]最容易造成小儿发生意外事故的时期为（）。
A. 新生儿期
B. 婴儿期
C. 幼儿期
D. 学龄前期
E. 学龄期
[多项选择]沉浸式蛇管换热器的优点有（）。
A. 结构简单，价格低廉
B. 便于防腐，能承受高压
C. 传热效果较好
D. 便于检查和清洗
[单选题] 生产经营单位的主要负责人依照规定受刑事处罚或者撤职处分的,自刑罚执行完毕或者受处分之日起,( )不得担任任何生产经营
单位的主要负责人。
A.三年内
B.五年内
C.十年内
D.终身
[判断题]插拔机盘、模块时应佩戴接地良好的防静电手环。( )
A.正确
B.错误
[单选题]配网抢修涉及非计划停电应按规定向调度汇报并经许可，严禁（），严禁擅自扩大工作范围。
A.擅自变更工作人员
B.擅自操作设备进行停送电
C.擅自变更停电范围
D.擅自改变安全措施
[单选题]12.特别容易产生分离性焦虑的儿童年龄阶段时
A..6个月~1岁
B..2~3岁
C..4~5岁
D..5~6岁
E..7~8岁
