热门试题:
[单项选择]招标文件中的质量标准必须达到国家施工验收规范合格标准，对于要求质量超过合格标准的，应计取 ( )。
A. 赶工措施费
B. 提前工期奖
C. 补偿费用
D. 损失费用
[单选题]䀕.仪表自动化标准中，气动仪表标准信号范围是（ ）。
A. 0.01-0.1MPa
B. 0.02-0.1MPa
C. 0.05-0.1MPa
D. 0.05-0.2MPa
[简答题]Could you tell me where the post office is?
[单项选择]“行通济，无闭翳”的谚语在佛山尽人皆知，请问“闭翳”粤语的意思是什么？（）
A. 浪费
B. 贫穷
C. 烦恼
D. 胆怯
[单项选择]放射性药物正确使用总原则正确的是（）。
A. 诊断检查时尽量采用先进的测量和显像设备，同时尽可能降低使用的放射性活度
B. 采用必要的保护和促排措施，以尽量减少不必要的照射
C. 对恶性疾病患者可适当放宽限制
D. 对小儿、妊娠妇女、哺乳妇女、育龄妇女应用放射性药物要从严考虑
E. 以上都对
[判断题]治安民警老赵和小王去某旅店检查，遭到店主和服务员的阻拦。老赵对他们进行口头警告，但是众人不听劝阻。店主扯掉老赵的帽子、纽扣等，用拳头殴打老赵的头部。小王见状抽出警棍，击打店主的胳臂和腿部，将其制服。小王的做法对否？(1.0分)
A.正确
B.错误
[单选题]汽轮机发生水冲击时，导致轴向推力急剧增大的原因是( )。
A.蒸汽中携带的大量水分撞击叶轮
B.蒸汽中携带的大量水分引起动叶的反动度增大
C.蒸汽中携带的大量水分使蒸汽流量增大
D.蒸汽中携带的大量水分形成水塞叶片汽道现象
[填空题]Coming Home: Life After Studying Abroad
Many returnees who have studied abroad may suffer re-entry culture shock when they go back to their home town. Here some positive ways of dealing with the return culture shock are introduced.
I. The (1) of Re-Entry (1) ______
Re-entry is one’s (2) experience of re-adjusting to (2) ______
life in one’s home culture after living abroad.
For many study abroad returnees, it is more difficult to
adjust to their home culture than the (3) . (3) ______
II. Some Common Re-Adjustment Issues
1. Personal growth and change
When you come back, you have changed in many ways because
you have experienced more freedom and (4) living abroad. (4) ______
You have to adjust your new self to your old home.
2. New Knowledge and Skills
When living abroad, you might develop new compe
[判断题]县级以上地方各级人民政府应急管理部门依照本法，对本行政区域内安全生产工作实施监督管理。（ )
A.正确
B.错误
[单项选择]牙磨损导致的病理变化有（）
A. 在牙本质暴露部分形成死区或透明层
B. 髓腔内相当于牙本质露出的部分形成修复性牙本质
C. 牙髓发生营养不良变化
D. 随着修复性牙本质的形成，牙髓腔的体积逐渐缩小
E. 以上均正确
[判断题]发生对重要用户停电或停止供热事故，有关地调值班调度员、值班监控员、厂（场、站）、变电站（汇集站）的运行值班人员及输变电设备运维人员应立即向省调值班调度员汇报。
A.正确
B.错误
[单选题]在资本限量情况下最佳投资方案必然是（ ）;
A.净现值合计最高的投资组合
B.获利指数大于1的投资组合
C.内部收益率最高的投资组合
D.净现值之和大于零的投资组合
[单选题]资本主义经济危机的根源在于
A. 使用价值和价值的矛盾
B. 私人劳动和社会劳动的矛盾
C. 生产社会化和资本主义生产资料私有制的矛盾
D. 生产过多超过劳动人民需要的矛盾
[单项选择]试验结果使对苯二胺显色的是（）
A. 硝酸盐还原
B. 吲哚试验
C. 氧化酶试验
D. O／F试验
E. 枸橼酸盐利用试验
[单选题]下列不属于设计人员的操作是（ ）
A.A、设计成果上传、
B.B、设计成果汇总、
C.C、提交设计成果审查、
D.D、设计任务下达
[判断题]后部挂有补机的列车，在区间内遇特殊情况不能继续运行需退回原发站时，本务机车司机应与车站值班员联系，并得到准许后，将补机变为本务机车，经过自动制动机简略试验，补机与原本务机联系好，即可向原发站运行，速度不得超过40km/h,按进站信号机的显示或引导（手）信号返回站内。车站值班员准许列车退回原发站前，须确认退回经路空闲。
A.正确
B.错误
[判断题]机械设备中的润滑油管通常用铜管制造。( )
A.正确
B.错误
[单项选择]监理工程师负责工程计量的范围是承包单位按承包合同完成（）的工程量。
A. 所有工程
B. 合格工程
C. 部分工程
D. 实际工程
[单选题](3分) 对伤寒或副伤寒具有诊断意义的特征性皮疹是
A. 斑疹
B. 玫瑰疹
C. 丘疹
D. 斑丘疹
E. 荨麻疹
[单项选择]三相异步电动机铭牌上的额定功率是指（）
A. 输入的有功功率
B. 轴上输出的机械功率
C. 视在功率
D. 电磁功率
[判断题]自动闭塞区段,连续式机车信号机显示一个白色灯光,不复示地面上的信号显示,机车乘务人员应按机车信号的显示运行。
A.正确
B.错误
[单选题] ( )年1月1日,国务院发布的《优化营商环境条例》正式施行。
A. 2018
B. 2019
C. 2020
D. 2021
[判断题]《高速铁路无砟轨道线路维修规则》规定：道岔和调节器尖轨或基本轨伤损时，宜同时更换尖轨和基本轨。
A.正确
B.错误
[填空题]如果公司母国政府对出口采取（）的政策，或对企业向境外投资有严格的约束，则企业可以采用出口方式进入外国市场；反之，则可考虑直接投资方式进入外国市场。
[多选题]在下列哪些情况下，个体较易产生与群体保持一致的从众行为倾向（ ）。
A.群体的竞争程度较低
B.群体成员的共同性较少
C.群体凝聚力较高
D.群体目标较明确一致
E.群体规模较小
[简答题]对变压器和电抗器油中溶解气体的含量有哪些注意值？
[多选题]自主可控新一代二次系统监控主机的数据合理性检测要求包括：（）； 对于同一量测位置的有功、无功、电流量测，在电压量测正确的情况下，检查是否匹配。
A.检测母线的有功功率、无功功率是否平衡
B.检测并列运行母线电压量测是否一致
C.检测母线电压是否越限
D.检查变压器各侧的功率量测是否平衡
[单选题]车辆段应结合实际情况制定完善应急处理手册。
A.正确
B. 错误
[单项选择]项目部作为分包合同管理主体，认真填写《工程分包合同汇总表》，且于每月（）日前上报分公司商务部备案存档。
A. 2
B. 3
C. 5
D. 7
[单项选择]
Passage 2 Questions 6 to 10 are based on the following passage: The vitamins necessary for a healthy body are normally supplied by a good mixed diet, including a variety of fruits and green vegetables. （78） It is only when people try to live on a very restricted diet that it is necessary to make special provision to supply the missing vitamins. An example of the dangers of a restricted diet may be seen in the disease known as beri-beri. （79） It used to distress large numbers of Eastern peoples who lived mainly on rice. In the early years of this century, a scientist named Eijkman was trying to discover the cause of beri-beri. At first he thought it was caused by a germ. He was working in a Japanese hospital, where the patients were fed on polished rice which had the outer husk removed from the grain. It was thought this would be easier for weak and sick people to digest. Eijkman thought his germ theory was confirmed when he noticed the chickens in the hospital yard, which we
A. was cheaper than unpolished rice
B. was less nourishing （有营养的） than unpolished rice
C. was more nourishing than unpolished rice
D. cured beri-beri
[填空题]铁路站场、区间应按<--NRC-->行走，并注意周边机车车辆动态和货物装载、设备设施状态，注意脚下有无障碍物。
[判断题]生产管理区是电力监控系统各安全区中安全等级高于非控制区的分区。
A.正确
B.错误
[单项选择]在VFP中，用来显示静态（不需用户修改）文本内容的控件是（）。
A. 文本框
B. 编辑框
C. 组合框
D. 标签
[单项选择]
For a long time, researchers have tried to nail down just what shapes us--or what, at least, shapes us most. And over the years, they’ve had a lot of exclamation moments. First it was our parents, particularly our mothers. Then it was our genes. Next it was our peers, who show up last but hold great sway. And all those ideas were good ones—but only as far as they went.
Somewhere, there was a sort of temperamental dark matter exerting an invisible gravitational pull of its own. More and more, scientists are concluding that this unexplained force is our siblings.
From the time we are born, our brothers and sisters are our collaborators and co-conspirators, our role models and cautionary tales. They are our scolds, protectors, goads, tormentors, playmates, counselors, sources of envy, objects of pride. They teach us how to resolve conflicts and how not to; how to conduct friendships and when to walk away from them. Sisters teach brothers about the mysteri
A. researchers have found out what shapes us.
B. our peer is the last factor influencing us.
C. what researchers found contributes in a limited way.
D. what researchers found is good and trustworthy.
[单项选择]不属于靶区定位、施源器及解剖结构空间重建方法的是（ ）
A. 正交和不完整正交投影重建法
B. 同中心投影重建法
C. 双等中心投影重建法
D. 立体平移投影重建法
E. 变交投影重建法
[单项选择]患者男，66岁，因“无明显诱因呕吐咖啡色血性液体400ml伴黑粪1d”来诊。既往间断上腹不适6个月，伴反酸、胃灼热及呕吐，体重下降5kg。查体：BP105/70mmHg；贫血貌；HR85次/min；腹软，上腹轻压痛，未触及异常包块，肠鸣音活跃。血常规：Hb78g/L，WBC12.4×109/L，MCV66fl，PLT230×109/L。其最可能的出血原因是（）
A. 食管静脉曲张破裂
B. 急性胃黏膜病变
C. Dieulafoy病
D. 消化性溃疡
E. 胃癌
