| Science is a dominant theme in our
culture. Since it touches almost every facet of our life, educated People need
at least some acquaintance with its structure and operation. They should also
have an understanding of the subculture in which scientists live and the kinds
of people they are. An understanding of general characteristics of science as
well as specific scientific concepts is easier to attain if one knows something
about the things that excite and frustrate the scientist. This book is written for the intelligent student or lay person whose acquaintance with science is superficial; for the person who has been presented with science as a musty store-house of dried facts; for the person who has been presented with science as the production of gadgets; and for the person who views the scientists as some sort of magician. The A. it is not easy to understand the things that excite and frustrate science B. science affects almost every aspect of our life C. scientists live in a specific substructure D. it is easier to understand general characteristics of science [单选题]良好的（ ）是做好思想政治工作的前提条件。
A.人际关系 B.精神生活 C.理想性 D.环境氛围 [单项选择]Gd-DTPA是一种（）
A. 超顺磁性对比剂 B. 顺磁性对比剂 C. 逆磁性对比剂 D. 血池对比剂 E. 肝细胞特异性对比剂 [判断题]一般说来铰刀刃口越钝，铰孔后的收缩量越大。 ( )
A.正确 B.错误 [单选题]进入正线运行前的测试功能不包括()
A.ATP/ATO彻底通讯是否正常工作 B.车载应答器天线自检 C.前方轨道区段空闲状态检测 D.车载ATO功能检测 [单项选择]数据库系统支持数据的逻辑独立性，依靠的是( )。
A. DDL语言和DML语言完全独立 B. 定义完整件约束条件 C. 数据库的三级模式结构 D. 模式分级及各级模式之间的影像机制 [单选题] 下列电压互感器接线形式中不能测量相电压的接线形式为(____)。
A. 单相接线 B. V/V接线 C. 三相五柱式接线 D. 三台单相式接线 [判断题]如司机发现严重晃车，车站值班员（列车调度员）接到汇报后立即拦停后续列车。
A.正确 B.错误 [单项选择]某计算机字长16位的机器码1111 1111 0000 0000，表示无符号的整数时对应的十进制表达式为 (5) ，表示一个带符号整数的反码时，该机器码表示的十进制表达式为 (6) 。该数的补码是 (7) 。
A，215-27 B．217-28 C．217-29 D．216-27 [单项选择]肝硬化门静脉高压症最具诊断价值的表现是（）
A. 腹水 B. 脾大，脾功能亢进 C. 腹壁静脉曲张 D. 食管下段、胃底静脉曲张 E. 便血 [单项选择]属于医学伦理学基本规范的是
A. 有利、公正 B. 权利、义务 C. 廉洁奉公 D. 医乃仁术 E. 等价交换 [简答题] 张力放线时，牵引机及张力机出线端的牵引绳及导线上应安装________。 (1.0分)
[多选题](1.0分)开关箱中的漏电断路器在正常情况下可用于( )。
A.电源隔离 B.频繁通.断电路 C.电路的过载保护 D.电路的短路保护 E.电路的漏电保护 我来回答: 提交
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