[单选题]有一湿纸浆含水50%,干燥后原有水分的50%除去,干纸浆中纸浆的组成为()。
A.50%
B.25%
C.75%
D.67%

[单选题][T]BC005 2 1 2
A.G14
B.G15
C.G16
D.G17[T/]

[单选题]马赫配平主要是对哪个操纵面的控制（ ）
A.升降舵
B.安定面
C.副翼
D.方向舵

[单选题]导盲犬，是指经过特殊训练并取得导盲犬工作证（载有导盲犬使用者信息，盖有公安部门或残疾人联合会公章，或带有国际导盲犬联盟标识（ ）），用于辅助视力残疾人工作、生活的服务犬。
A.IGDF
B.IFGF
C.IDGF
D.IFGD

[单选题]钢轨折断紧急处理后，按不超过45km/h速度放行列车，邻线限速不超过（）km/h
A.60
B.80
C.120
D.160

[单项选择]以苯甲酸钠为防腐剂，其药液适宜的pH值是（）
A. 9以上
B. 8
C. 7
D. 5
E. 4以下

[单项选择]原核生物所有编码合成代谢酶的基因在转录起始位点的上游10和35碱基处都有保守序列。对此最好的解释是，这里是( )的结合位点。
A. Rho因子
B. DNA聚合酶
C. RNA聚合酶全酶
D. 核糖体

[单项选择]下列骨折愈合标准中哪项是首先检查和最重要的（）
A. 连续观察2周、骨折处不变形
B. 局部无压痛及纵向叩击痛
C. 上肢向前平举1kg重物，持续1分钟
D. 局部无反常活动
E. 下肢不扶拐杖行走3分钟，不少于30步

[判断题]铁路运输具有运量大、成本低、能耗少、安全正点的巨大优势。
A.正确
B.错误

[判断题]线路终勘测量也称为定线测量。(　　)
A.正确
B.错误

[单选题]应变式压力计是通过传感器把被测压力转换成应变片(　　)的变化，并由桥路获得相应输出信号这一原理工作的。
A.电压
B.电容量
C.电阻值
D.电感量

[单项选择]移经暖地表的冷气团具有下述何种特征（）.
A. 积状云、乱流和低能见度
B. 积状云、乱流和能见度好
C. 层状云、气流平稳和低能见度

[多项选择]MRI扫描显示主动脉弓和升主动脉、降主动脉的方法是（）
A. 扫主动脉弓位
B. 扫心脏短轴位
C. 扫心脏长轴位
D. 在横轴位定位像选斜矢状扫描方位
E. 定位线通过升主动脉和降主动脉

[单选题]商业银行应( )对相关负债质量管理的策略、制度、流程、限额和应急计划等进行评估，必要时进行修订。
A.每年
B.每季
C.每两年
D.每半年

[简答题]简述一级维护中发动机的基本作业项目。

[多选题]B-5660飞机灭火瓶存放于:( )
A. 驾驶舱内1个
B. 前舱储物柜内1个
C. 第67排ABC座椅背后1个
D. 第67排JKL 座椅背后1个

[单选题]标底只能作为评标的（）。
A.资格审查条件
B.依据
C.参考
D.中标条件

[多选题]省级电力公司及所属供电单位营销部门在资金管理中配合撤销(____)电费账户，落实电费(____)管理模式。
A.县公司
B.地市县供电公司
C.一市一行一户
D.省级直收

[单项选择]

Competition with research in universities is very harmful to teaching. Therefore, it would be much more beneficial to teaching to develop a sound program of educational research. Such a program would improve teaching theory and technique. It would also make clear what competencies are required of a good teacher as well as help professors attain them.
Educational research should be required to meet the same standards as scientific research, but it cannot be raised to those standards without comparable support and duty. Competent educational research is no more a part-time activity than competent scientific research. The relatively trivial (琐碎的) educational research so common in the universities is an inseparable result of trivial duties by the universities. Rather than look down upon such research, the professors have an obligation to see that it is upgraded.
Let no one think that educational research is easy; it is concerned with no less than solving the complexit
A. To develop teaching theories.
B. To avoid the harm of competition with research.
C. To develop teaching techniques.
D. To help professors improve competencies.

[简答题]简述人民检察院自侦案件侦查终结后移送审查起诉的条件。

[判断题]因为变化的电流通过导体或线圈而产生自感电动势,自感电动势的大小和线圈形式及导线有关。
A.正确
B.错误

[不定项选择题]共用题干 Scientists working on a problem do not know and sometimes can't even guess what the final result will be.Late on Friday,8 November,1895,Professor Rontgen,a German physicist,was doing an experiment in his laboratory when he noticed something extraordinary.He had covered an electric bulb with black cardboard,and when he switched on the current he saw little dancing lights on his table.Now the bulb was completely covered;_________(46)?On the table there were some pieces of paper which had been covered with metal salts.It was on this paper that the lights were shining. Professor Rontgen took a piece of this paper and held it at a distance from the lamp.Between it and the lamp he placed a variety of objects,a book,a pack of cards,a piece of wood and a door key. __________(47).He called his wife into the laboratory and asked her to hold her hand between the lamp and a photographic plate._________(48),but she held up her hand for a quarter of an hour, and when the plate was developed there was a picture of the bones of her hand and of the ring on one finger. The mysterious ray could pass through the flesh and not through the bone or the ring.
At a scientific meeting,Professor Rontegen called this new ray "the unknown" the X-ray. _________(49),and soon there were X-ray machines in all the big hospitals.The most obvious use for this discovery was to enable doctors to see exactly how a bone was fractured._________(50).It was found that these rays could be used to destroy cancer cells,just as they destroyed the healthy cells of the doctors who first used the machines.Methods were found later by which ulcers in the stomach could be located,and the lungs could be X-rayed to show if there was any tuberculosis present. _______（46）
A.The ray penetrated every one of them except the key
B.She was very surprised by this request
C.how then could any ray penetrate
D.It was a great invention
E.Other uses came later
F.Doctors quickly saw how this could be used

[单项选择]在Windows XP的“回收站”中，一次可以还原（）个文件或文件夹。
A. 1
B. 10
C. 30
D. 若干

[判断题]郑州地铁5号线车体形式为V型车体。
A.正确
B.错误

[判断题]可控型班组半年内检查漏项不超过1次，有检查记录。
A.正确
B.错误

[判断题]GoogleEarth的StreetView功能可以看到Google分布在发达国家主要干道的摄像头所拍摄的360°全景照片
A.正确
B.错误

[多选题]掌握安全生产动态，要详细记录解决问题的（ ）。
A.时间
B.地点
C.参加人
D.内容
E.处理意见
F.处理结果

[多选题]马克思恩格斯在《德意志意识形态》中写道：“以一定的方式进行生产活动的一定的个人，发生一定的社会关系和政治关系。”马克思的科学实践观的科学之处在于（）。
A. 揭示了社会生活的实践本质
B. 指出了物质生产实践在社会生活中的重要作用和地位
C. 实现了唯物主义自然观和历史观的统一
D. 找到了人类历史“真正的发源地”

[单选题]《安全生产法》规定，生产经营单位必须遵守本法和其他有关安全生产的法律、法规，加强安全生产管理，建立健全全员安全生产责任制和安全生产规章制度，加大对安全生产资金、物资、技术、人员的投入保障力度，改善安全生产条件，加强安全生产标准化、信息化建设，构建（ ）。
A.A、安全风险分级管控和隐患排查治理双重预防机制
B.B、隐患排查治理机制
C.C、重大危险源管控机制
D.D.安全风险动态管控机制

[多选题]《铁路旅客运输服务质量规范》（铁总运〔2016〕247号）规定：洗脸(手)池、电茶炉沥水盘、餐车洗碗池清理、擦抹及时，（）。
A.无残渣
B.无堵塞
C.无积水
D.无污渍

[单选题]股道号码信号夜间——白色灯光左右摇动后，从左下方向右上方高举，为（ ）。
A.一道
B.二道
C.三道
D.四道

[单项选择]窦房结恢复时间的正常值为
A. ≤1500ms
B. ≤1600ms
C. ≤1800ms
D. ≤2000ms
E. 1500～2000ms

[单项选择]在混凝土用砂量不变的情况下，砂的级配良好，说明( )。
A. 砂的空隙率大
B. 砂的空隙率小
C. 砂的总表面积大
D. 砂的总表面积小

[判断题]三相半波可控整流电路也要采用双窄脉冲触发。

[判断题] 隔离式安全栅分为检测端安全栅和操作端安全栅两种。
A.正确
B.错误