[单项选择]盐酸普鲁卡因与亚硝酸钠液反应后，再与碱性β-萘酚反应生成红色沉淀，其依据是（）。
A. 生成了氯化钠
B. 叔胺的氧化
C. 酯基的水解
D. 芳香伯氨基的存在
E. 苯环上的亚硝化

[单项选择]n为100以内的自然数，那么能令2ⁿ-1被7整除的n有（）个
A. 32
B. 33
C. 34
D. 35

[多项选择]采用强化胰岛素治疗方案后，仍出现早晨空腹高血糖，原因为（）
A. 糖尿病蜜月期
B. 黎明现象
C. 偶然现象
D. 夜间胰岛素作用不足
E. Somogyi效应

[单选题](　　)840.地面某线段的坡度等于该线段两端点的高差与（ ）的比值。
A.倾斜距离
B.水平距离
C.高程中数
D.高程之和

[多项选择]货币和资本的根本区别在于能否 ( )
A. 带来剩余价值
B. 购买生产资料
C. 充当等价物
D. 和黄金进行等价交换

[单项选择]

Astronaut Jim Voss has enjoyed many memorable moments in his career, including three space flights and one space walk. But he recalls with special fondness a decidedly earthbound experience in the summer of 1980, when he participated in the NASA-AS-EE Summer Faculty Fellowship Program. Voss, then a science teacher at West Point, was assigned to the Marshall Space Flight Center’s propulsion lab in Alabama to analyze why a hydraulic fuel pump seal on the space shuttle was working so well when previous seals had failed. It was a seemingly tiny problem among the vast complexities of running the space program. Yet it was important to NASA because any crack in the seals could have led to destructive results for the astronauts who relied on them.
"I worked a bit with NASA engineers," says Voss, "but I did it mostly by analysis. I used a handheld calculator, not a computer, to do a thermodynamic analysis. "At the end of the summer, he, like the other NAS
A. Because previous seals all failed.
B. Because it was very complex in running the space program.
C. Because great care has to be taken of the hydraulic fuel pump sealing.
D. Because any crack in the seals would cause disastrous results for the astronauts.

[填空题]330MW机组锅炉跟随方式是协调控制系统在（）或（）下的一种辅助运行方式。

[单项选择]儿童多动症必须具备的症状是（）。
A. 神经发育障碍
B. 活动过多
C. 注意障碍
D. 冲动性
E. 突然性

[判断题]流放大器只能放大直流信号，交流放大器只能放大交流信号。
A.正确
B.错误

[判断题]电能计量箱装有电器的可开启门和框架的接地端子间应用铜质绝缘导线连接。
A.正确
B.错误

[判断题]遇带电电气设备着火时，应使用泡沫灭火器（）。

[单选题]党员如果没有正当理由，连续（）不参加党的组织生活，或不交纳党费，或不做党所分配的工作，就被认为是自行脱党。
A.一年
B.三个月
C.六个月
D.一个月

[单项选择]EPC工程总承包项目风险控制的基本原则中，不包括（）。
A. 责、权、利的平衡
B. 风险分配给容易控制一方
C. 对于难以预计的风险应该由业主和承包商共同承担
D. 应符合工程惯例

[多项选择]下列选项中属于公安机关人民警察法定职责的是（）。
A. 管理集会、游行、示威活动
B. 维护国（边）境地区的治安秩序
C. 管理外国人在中国境内居留、旅行的有关事务
D. 对被判处管制、拘役、剥夺政治权利的罪犯和监外执行的罪犯执行刑罚

[单项选择]以下不是ADPCM作用的是（）。
A. 提高信噪比
B. 数据压缩
C. 适应信道变化
D. 模拟信号数字化

[单项选择]Increasingly, over the past ten years, people—especially young people—have become aware of the need to change their eating habit, because much of the food they eat, particularly processed foods, is not good for the health. Consequently, there has been a growing interest in natural foods: foods which do not contain chemical additives and which have not been affected by chemical fertilizers, widely used in farming today.
Natural foods, for example, are vegetable, fruit and grain which have been grown in soil and are rich in organic matter. In simple terms, this means that the soil has been nourished by unused vegetable matter, which provides it with essential vitamins and minerals. This in itself is a natural process compared with the use of chemicals and fertilizers, the main purpose of which is to increase the a-mount—but not the quality--of foods grown in commercial farming areas.
Natural foods also include animals which have been allowed to feed and move freely in healt
A. people’s growing interest in natural foods
B. natural food and healthy diet
C. the importance of fibre in foods
D. harmful effects of sugar

[单选题]802.11AC，单空间流，最大支持无线传输速率为（ ）
A.150M
B.1200M
C.433M
D.300M

[多选题]高压系统的组成包括 、保护接地开关、高压电缆、电压传感器及电流传感器等。
A.受电弓
B.高压断路器
C.避雷器
D.牵引变压器

[单选题]消防设施的联动运行情况在火灾报警控制器、联动控制盘及图形显示装置上有对应的显/指示故障灯为( )
A.红色
B.绿色
C.蓝色
D.黄色

[判断题] 夜间行车,发现当灯光光束随之从道路 的一侧移到另一侧时,说明即将进入一般弯道
A.正确
B.错误

[简答题]为了建设美丽宁夏，“三位一体”的环境准入机制是指？

[单项选择]计算机只要是感染上病毒，计算机的工作（）
A. 肯定会受到病毒干扰
B. 肯定会停止
C. 肯定会变慢
D. 不一定受到干扰

[填空题] Business and government leaders consider the inflation rate to be an important indicator. Inflation is a period of increased (B1) that causes rapid rises in prices. When your money buys fewer goods so that you get (B2) for the same amount of money as before, inflation is the problem. There is a general rise (B3) the price of goods and services. Your money buys less. Sometimes people (B4) inflation as a time when "a dollar is not worth a dollar any more." Inflation is a problem for all consumers. People who live on a (B5) income are hurt the. (B6) Retired people, for instance, cannot (B7) on an increase in income as prices rise. Elderly people face serious problems in (B8) their incomes to meet their needs in (B9) of inflation. Retirement income (B10) any fixed income usually does not rise as fast as prices. Many retired people must cut their spending to (B11) up with rising prices. In many cases they must stop buying some necessary items, such as food an
A. A．fixed
B．eternal
C．permanent
D．variable

[多选题]关于导尿管及其使用正确的是
A.目前最常用的是气囊或Foley导尿管
B.21F表示导尿管周径为21mm，直径约为7mm
C.必须严格按无菌术操作
D.必领确认导尿管尖端已进人膀胱，并有尿液导出，然后再注水入气囊固定
E.用导尿管测定残余尿时，嘱病人排尿后等候，再施行导尿术

[单选题]220kV等电位作业人员与地电位作业人员传递工具和材料时，应使用绝缘绳索进行，其有效长度不准小于（）m。
A.1.6
B.1.7
C.1.8
D.1.9

[判断题]押运员应统一着装、持押运证件上车作业，遵守列车相关规定，服从列车长指挥。列车长应对押运员的证件进行检查和登记。
A.正确
B.错误

[单选题]发现合成纤维吊装带外部（ ）破损显露出内芯时，应立即停止使用。
A.包裹物
B.纤维布
C.表面
D.护套

[多项选择]城市规划实施管理的范围是城市规划区内的各项建设，其含义是：
A. 管理空间范围
B. 管理权力范围
C. 管理地域范围
D. 管理任务范围
E. 管理对象范围

[判断题]《国家电网公司业扩供电方案编制导则》（国家电网营销 〔2010〕1247号）规定：根据确定的供电方式及运行方式确定电能计量方式、用电信息采集终端安装方案。
A.正确
B.错误

[单项选择]加弹机龙带惰轮表面脏污的正确处理方法是在停机后（）。
A. 用铁砂布打磨
B. 用浸有丙酮的棉布擦拭
C. 用钢丝球打磨
D. 用钩刀刮磨

[单选题](易)电气工作人员在6kV配电装置中工作,其正常活动范围与带电设备的最小安全距离是( )。( )
A.0.30m
B.0.35m
C.0.40m

[判断题]( )混合散光就是镜片在互相垂直的两条主子午线上具有不同性质的屈光力。
A.正确
B.错误

[单项选择]女性，38岁，周身关节对称性肿痛2年，多关节变形1年。双手掌指关节尺侧偏移，双肘屈曲畸形。患者在接受上述治疗后3个月，逐渐出现低热、乏力、气短、盗汗、体重减轻，咳嗽不明显，胸片示左侧胸腔中等量积液，肺纹理稍粗，血沉及C反应蛋白增高，此患胸腔积液最可能的原因是（）
A. 结核性胸膜炎
B. 类风湿关节炎的肺部表现
C. 系统性红斑狼疮
D. 干燥综合征致肺部表现
E. 肺炎
F. 支气管扩张

[判断题]单极金属回线运行时，可以对停运极进行空载加压试验；
A.正确
B.错误

[单项选择]含较多稀有碱基
A. tRNA
B. mRNA
C. hnRNA
D. SnRNA
E. rRNA

[判断题]包车全部运行途中，里程采取分段计算。
A.正确
B.错误

[单项选择]生产企业中有权判定产品质量是否合格的专门机构是( )。
A. 设计开发部门
B. 工艺技术部门
C. 质量检验部门
D. 质量管理部门

[判断题]高柱出站、高柱进路信号机，不得小于800 m；( ) PJ69
A.正确
B.错误

[单选题]交界性肿瘤是指
A.有两个胚层的组织构成的肿瘤;
B.介于良性与恶性肿瘤之间的肿瘤;
C.具有癌和肉瘤结构的肿瘤;
D.发生于表皮与真皮交界处的肿瘤;
E.既有鳞癌又有腺癌结构的肿瘤;