[单选题]存储有用户信息、加密的密钥，为通信提供身份鉴别和通信加密的电子芯片称之为（ ）
A.存储卡
B.U盾
C.通信卡
D.加密卡

[判断题]我国颁布的第一版压力容器国家标准是GB对5错-98《钢制压力容器》
A.正确
B.错误

[填空题] Cats are (36) ________ of habit. They like to go to sleep about the same time every day and for a certain (37) ________ of time. They seem to have a (38) ________ clock inside them that tells them when to sleep. Cats (39) ________ their regular sleep with (40) ________ catnaps. Some experts feel that human could also (41) ________ from this habit. Catnaps help to build up (42) ________ in the body. They are also a good way to overcome (43) ________. Since cats have moods similar to those of humans, some experts believe that (44)________________. (45) ________________. The naps would usually last from fifteen to thirty minutes. Winston Churchill took catnaps. So did Presidents Harry Truman, John F. Kennedy, and Lyndon B. Johnson. (46)________________. Perhaps more people could learn from cats and take naps to feel better and live longer!

[不定项选择题]保护求助者的隐私有利于向求助者表达（ )。
A.理解
B.真诚
C.尊重
D.共情

[多选题]（2020年）根据增值税法律制度的规定，下列各项中，免征增值税的有（ ）。
A.福利彩票发行单位发行福利彩票取得的收入
B.在校大学生勤工俭学提供服务取得的收入
C.养老机构提供养老服务取得的收入
D.幼儿园提供保育服务取得的收入

[多选题]司机发现或接到列尾主机丢失的通知时，须（ ），经调度命令准许，运行至指定车站安装列尾主机。该列车开车前及中途停车再开时，不论停留时间长短，须对列车自动制动机进行简略试验。
A.立即停车
B.确认列车完整
C.关闭列车尾部制动软管的折角塞门并吊起尾部车辆软管（在区间及无人站由机车乘务员负责）

[判断题]长大隧道、特大桥梁突发事件造成列车非正常运行或停车时，列车长。接到通知后，立即将掌握的信息向局调度所客运（客服）调度员汇报。同时报告本单位乘务指挥中心。
A.正确
B.错误

[单选题]压力容器的定期检验分为年度检验和全面检查,某工厂车间压力容器,在投用满三年时进行了首次全面检查,检验机构根据此次检查结果认定,该压力容器安全状况属于 1级和 2 级压力容器,则该压力容器下次检查周期是( )。
A. 2 年
B. 4 年
C. 6 年
D. 8 年

[单选题]如果驾驶舱配平活门失效，热空气压力调节活门的工作状态是怎样的？
A. 正常
B. 不工作
C. 必须手动关闭
D. 取决于热空气压力管道温度

[单项选择]具有哪种理化特性的毒物容易在上呼吸道吸收
A. 水溶性大
B. 水溶性小
C. 脂溶性大
D. 脂溶性小
E. 以上都不是

[单选题]李某,18岁,患急性扁桃体炎,医嘱青霉素皮试。配制青霉素皮试液时,其皮内注射剂量为
A.10U
B.50U
C.100U
D.500U
E.2500U

[简答题]简述CR400AF动车组可远程切除/恢复的设备包括哪些？

[单选题] 安全生产基本方针中“安全第一”是指安全与生产、安全与效益、安全与进度冲突时,必须首先保证()。
A.质量
B.安全
C.进度
D.效益

[多选题]应每年对断路器安装地点的（ ）与断路器的（ ）进行一次校核
A.母线短路电流
B.动稳定电流
C.额定短路开断电流
D.热稳定电流

[简答题]SS4型机车是如何实现电阻制动的？

[多项选择]“聚焦客户的信息化创新战略”的重点目标业务领域包括（）。
A. IPTV
B. IP通信
C. IT技术
D. 信息内容及应用

[单项选择]患者，男性，45岁，发现右眼球突出缓慢加重3年。体检：右眼球向前内下突出，外上方眶缘可触及无痛性肿物，CT显示眼眶外上方有一边界清楚的20mm×18mm类圆形高密度肿物，泪腺窝骨壁变薄，呈一浅凹，无骨质破坏。B超显示外上方有一边界清楚的类圆形肿物，内回声中等，加压不变形。本病例最可能的诊断为（）
A. 泪腺区炎性假瘤
B. 泪腺腺样囊腺癌
C. 泪腺多形性腺瘤
D. 泪腺区淋巴瘤
E. 泪腺区神经鞘瘤

[单选题]关于 NAT 地址池的配置命令如下，则其中 no-pat 参数的含义是：
A.不做地址转换
B.进行端口复用
C.不转换源端口
D.不转换目的端口

[单选题]建筑物顶层平台广告设施高处作业时,应设置( ):
A.防护栏杆;
B.防护网;
C.设密目网;

[单项选择]What is the primary purpose of creating a Location Group Policy? （）
A. to associate more than one realm with an authentication server
B. to logically group network access devices and associate them with specific sign-in policies
C. to allow or prevent users from accessing resources in specific locations on the network
D. to define the URL that users of network access devices can use to access the Infranet Controller

[单项选择]世博园区规划用地范围的浦东部分为（）平方公里。
A. 3.93
B. 1.35
C. 5.28

[单项选择]( )是指代表县级以上的特种设备安全监督管理部门内执行安全监察任务的特种设备安全监察机构的人员。
A. 特种设备管理人员
B. 特种设备维修人员
C. 特种设备安全监察人员
D. 特种设备采购人员

[单项选择]下列组合中均具有降胆固醇作用的是（）
A. 芥子油甙、类胡萝卜素、多酚
B. 植物固醇、硫化物、皂甙
C. 植物血凝素、蛋白酶抑制剂、植酸
D. 植物雌激素、植物固醇、皂甙
E. 硫化物、多酚、蛋白酶抑制剂

[简答题]

Part C Directions: Read the following text carefully and then translate the underlined segments into Chinese. Your translation should be written clearly on ANSWER SHEET 2. Radiation occurs from three natural sources, radioactive material in the environment, such as in soil, rock, or building materials; cosmic rays; and substances in the human body, such as radioactive potassium in bone and radioactive carbon in tissues. These natural sources account for an exposure of about 100 million a year for the average American. The largest single source of man-made radiation in medical X-rays, yet most scientists agree that hazards from this source are not as great as those from weapons-test fallout, since strontium-90 and carbon-14 become incorporated into the body, hence delivering radiation for an entire lifetime. (46) The issue is, however, by no means uncontroversial; indeed, the last two decades have witnessed intensified examination and dispute about the effects of