| Not many 25-year-olds can reasonably
claim to have changed the world. The IBM personal computer, which was launched
in 1981 and celebrates its 25th birthday in August, is a rare exception. Other
personal computers had been launched before; but it was the IBM PC that ended up
defining the standard around which a vast new industry then coalesced. IBM, the
titan of the computing World at the time, quickly lost control of its own
creation, allowing others to reap the benefits. But leave aside what the PC has
done for the fortunes of particular companies, and instead step back and
consider what the PC has done for mankind. The PC’s most obvious achievement has been to help make computers cheaper, more widely available and more useful than ever before. Before it appeared, different computers from different manufacturers were mostly incompa A. Optimistic. B. Critical. C. Biased. D. Prospective. [填空题]子宫内膜异位症为（）病变，但具有恶性肿瘤的（）和（）能力。
[多选题]《中国南方电网有限责任公司变更类用电报装业务指导书》规定:不涉及工程业务的南方电网公司营销服务一体化业扩业务流程包括:(? ? )
A.改类 B.非永久性减容 C.暂拆 D.销户 [简答题]凡是在公司票务运作中，因员工违反公司票务管理规章制度、设备操作规范，但尚未构成 票务事故的行为或操作，均认定为票务违章。
[单项选择]监理工程师在施工阶段质量控制手段不包括（）。
A. 现场监督和检查 B. 利用支付手段 C. 规定质量监控工作程序 D. 现场旁站与巡视 [单选题] 2019年10月25日起实施的车辆分公司《电动列车试运行及投用管理规定》中指出,试运行计划实施前,车辆分公司维修部应提前对列车()进行检查确认。
A.列车号 B.车辆设备状态 C.列车型号 D.工器具 [单项选择]145、60C1816DⅢ拖泵，使用小排量泵车主阀块，其中高压小排量时，是哪几个号插装阀关闭：（）。
A. 4号、5号、6号； B. 1号、2号、3号； C. 1号；D、4号 [判断题]由于感应作用及直击雷而产生的过电压总称为大气过电压。
A.正确 B.错误 [判断题]培养犬搜尸吠叫示警能力是以犬对物品的强烈占有欲为基础的,可采取将尸块、尸体掩埋和隐蔽的方式进行训练。( )
A.正确 B.错误 [单选题]停风的掘进巷道，每班在栅栏处至少检查（ ）瓦斯浓度。
A.1次 B.2次 C.3次 [判断题] 根据《建筑工程五方责任主体项目负责人质量终身责任追究暂行办法》规定,建筑工程开工建设前,建设、勘察、设计、施工、监理单位法定代表人应当签署授权书,明确本单位项目负责人。
A.正确 B.错误 [多选题]一、二级动火工作票签发人应是经本单位考试合格,并经本单位批准且公布的有关部门( )。
A.负责人 B.技术负责人 C.有关班组班长 D.经本单位批准的其他人员 [单选题]依据《国家电网有限公司输变电工程施工分包安全管理办法》要求，施工项目部管理职责，实施管控（），确保分包工程安全、质量全面受控。
A.现场分包作业 B.现场检测资料 C.分包材料质量 D.分包工器具 [单选题]工作许可人应是经（）批准的有一定工作经验的运维人员或检修操作人员（进行该工作任务操作及做安全措施的人员）。
A.安监部门 B.工区 C.本单位主管领导 D.本单位总工程师 [判断题]曲线标，设在曲线中点处，标明曲线中心里程、半径大小、曲线和缓和曲线长度以及曲线超高和加宽值。
A.正确 B.错误 [单项选择]
A. 碟形手术 B. 广泛切除周围部分正常骨质清除病灶，防止复发 C. 术后敞开伤口定期换药 D. 行病灶清除同时植骨 E. 继续抗生素治疗病情稳定后手术 [单选题]滚动轴承的主要失效形式是( )。
A.磨损 B.磨损和塑性变形 C.疲劳点蚀和塑性变形 D.塑性变形 [判断题]SF6断路器（开关）进行操作时，禁止检修人员在其外壳上进行工作。
A.正确 B.错误 [单项选择]
Passage 3 Questions 11 to 15 are based on the following passage: Breastfeeding (母乳喂养) for a month or longer appears to reduce a woman’s risk of getting diabetes (糖病) later in life, according to a new study. The breastfeeding and diabetes link has been reported in other studies, according to researcher Eleanor Schwarz. Yet, her study makes the link easier to believe. Her study is published in a journal of medicine in America. Schwarz and her colleagues looked at data about breastfeeding practices. They evaluated data on 2,233 women f~om Califomia. Of those, 405 were not mothers, 1,125 were mothers who breastfed for at least a month, and 703 were mothers who had never breastfed. They were 40 to 78 years old. According to Schwarz’s study, the risk of getting a diagnosis (诊断) of Type 2 diabetes for women who breastfed all their children for a month or longer was similar to that of women who had not given birth. But mothers who had never breastfed were nearly twice as like [单选题] 加热炉( )运行,会造成回火。
A. 超温 B. 超负荷 C. 低负荷 D. 低温 我来回答: 提交
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