[单项选择]In recent years, railroads have been combining with each other, merging into supersystems, causing heightened concerns about monopoly. As recently as 1995, the top four railroads accounted for under 70 percent of the total ton-miles moved by rails. Next year, after a series of mergers is completed, just four railroads will control well over 90 percent of all the freight moved by major rail carriers. Supporters of the new supersystems argue that these mergers will allow for substantial cost reductions and better coordinated service. Any threat of monopoly, they argue, is removed by fierce competition from trucks. But many shippers complain that for heavy bulk commodities traveling long distances, such as coal, chemicals, and grain, trucking is too costly and the railroads therefore have them by the throat. The vast consolidation within the rail industry means that most shippers are served by only one rail company. Railroads typically charge such" captive" shippers 20 to 30 perce
A. cost reduction is based on competition.
B. services call for cross-trade coordination.
C. outside competitors will continue to exist.
D. shippers will have the railway by the throat.

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[判断题]原子量是一个没有单位的比值，所以原子质量没有单位。（）
A.正确
B.错误

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[单选题]以下选项中,哪个不是毫米波的主要应用场景?( )
A.广覆盖
B.自回传
C.容量提升
D.家庭宽带接入

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[单选题]一般情况下，高层旅馆位于袋形走道尽端的房间疏散门至最近安全出口的直线距离不应大于（）
A.16
B.14
C.15
D.13

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[单项选择]Common-cold Sense

You can’t beat it, but you don’t have to join it. Maybe it got the name "common cold" because it’s more common in winter. The fact is, though, being cold doesn’t have anything to do with getting one. Colds are caused by the spread of rhinoviruses, and, at least so far, medical science is better at telling you how to avoid getting one than how to get rid of one.
Children are the most common way cold viruses are spread to adults, because they have more colds than adults-an average of about eight per year. Why do kids seem so much more easily to get colds than their parents Simple. They haven’t had the opportunity to become immune to many cold viruses.
There are more than 150 different cold viruses, and you never have the same one twice. Being infected by one makes you immune to it-but only it.
Colds are usually spread by direct contact, not sneezing or coughing. From another person’s hand to your ha
A. to keep yourself clean
B. to use a disinfectant soap
C. to take two aspirin pills every day
D. to drink lots of water

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[判断题].不合格的商品包括:在商品验收、销售和储存过程中发现受污染、变质、临近保质期和标识缺失及外包装存在损坏的商品。( )
A.正确
B.错误

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[单项选择]表现为筋骨不坚、胸廓狭窄、肌肉瘦削、皮肤不荣、疲惫乏力者为（）
A. 体强
B. 体弱
C. 体轻
D. 体瘦
E. 体胖

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[单项选择]实现法治是一个相当长的过程，需要具备一些条件，下列哪一个选项不属于实现法治须具备的条件( )
A. 民主是法治的基本政治条件
B. 市场经济是法治的经济基础
C. 较高的文化素质是法治的文化条件
D. 人口众多是法治的公民条件

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[单选题]( )是指外汇买卖活动的总称。
A.外汇市场
B.外汇总市场
C.汇兑买卖
D.汇兑市场

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[判断题]含较多高岭石矿物是海陆过渡相沉积的主要特征。

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[多选题]MACS-SCADA3.0软件环境可以分为( )。
A.离线组态
B.在线运行
C.在线编程
D.下装服务
E.在线组态

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[单选题]火灾是在( )或( )上失去控制的燃烧所造成的灾害,火灾的发生、发展过程始终伴随着( )过程。
A.时间、地点、热传播
B.时间、空间、蔓延
C.时间、空间、热传播
D.时长、空间、蔓延

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[单项选择]物业服务成本的构成一般包括( )。
①管理服务人员的工资、社会保险和按规定提取的福利等；②物业共用部位、共用设施设备的更新、改造费用；③物业管理区域清洁卫生费用；④办公费用；⑤物业管理区域秩序维护费用；⑥物业管理区的绿化养护费；⑦物业管理企业的酬金；⑧物业管理企业固定资产折旧费；⑨物业共用部位、共用设施设备及公众责任保险费用
A. ①②③④⑤⑥⑧⑨
B. ①②③⑤⑥⑦⑧
C. ①②③④⑤⑥⑦⑨
D. ①③④⑤⑥⑧⑨

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[判断题]计算机病毒指编制或在计算机程序中插入的破坏计算机功能或者破坏数据,影响计算机使用并且能够自我复制的一组计算机指令或者程序代码。
A.正确
B.错误

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[多选题]直埋电缆的敷设方式适合于(____)电压等级。
A.10kV
B.35kV
C.110kV
D.220kV

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[单选题]中共八大指出,在我国社会主义制度已经建立的情况下,国内的主要矛盾是( )。
A.人民内部各个方面的矛盾
B.无产阶级同资产阶级的矛盾
C.社会主义与资本主义的矛盾
D.先进的社会制度同落后的社会生产之间的矛盾

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[单选题]布洛芬镇痛的主要机理( )
A.抑制外周PG合成
B.抑制中枢PG合成
C.二者均是
D.二者均不是

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[判断题]消防救援人员必须遵守公共秩序和交通规则,遵守职业道德和社会公德,举止文明,自觉维护国家综合性消防救援队伍声誉。( )
A.正确
B.错误

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[单选题]66．申请接力贷的共同借款人中的父亲（或母亲）具有完全民事行为能力和稳定的职业、收入，且年龄不超过（）岁。
A.55
B.50
C.60
D.70

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[判断题]为了防止感应静电的危险,不仅产生静电的金属部分应当接地,而且其他不相连接但邻近的金属部分也应接地。
A.正确
B.错误

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