参考答案:A
本题考核的是控制粉尘爆炸的技术措施。控制产生粉尘爆炸的主要技术措施是缩小粉尘扩散范围，消除粉尘、控制火源、适当增湿。对于产生可燃粉尘的生产装置，可以进行惰化防护，即在生产装置中通入惰性气体
第16题: [判断题]采用点状加热火焰矫正薄板结构件时，加热点越小，加热点间距越近，矫正效率越高。( )
参考答案:错
第17题:[单选题]某检修部检修一班工作负责人王某某，请问他办理哪种工作票不走签发流程（）
A.线路第一种工作票
B.线路第二种工作票
C.厂站第二种工作票
D.紧急抢修工作票
参考答案:D
第18题:[判断题]退行方式两长声表示电客车、工程列车、调试列车或机车车辆开始退行（ ）。
A.正确
B.错误
参考答案:A
第19题:[多选题]依据油浸式变压器(电抗器)运维细则规定,变压器在正常运行时,(____)保护应投跳闸。
A. 本体重瓦斯
B. 有载调压开关重瓦斯
C. 本体轻瓦斯
D. 压力释放
参考答案:AB
第20题: [单项选择]屏幕显示器柴油机转速显示值应与机车柴油机转速值一致，允许误差（）
A. ±20rpm
B. ±30rpm
C. ±40rpm
参考答案:B
第21题: [多项选择]Is environment protection important Why
参考答案:Suggested answers:
a．I think environment protection is very important. Corporations, and especially manufactures, are in business to provide products and services that enrich people’s lives, making them happier and more convenient. At the same time, these products must be environmentally conscious, both in terms of manufacturing and marketing, to ensure that the environmental burden is reduced and the products contribute tribute to the goal of establishing an environmentally and economically sustainable society. Without environment protection, there will be no sustainable development.
b．As we all know, environment protection is necessary. The air, water, and the land on Earth are being harmed by man’s activities. We believe that just as advances in technology and the establishment of social systems helped resolve local pollution problems, technology can also answer these global environmental threats. However, it is imperative for the government of the countries around world to legislate on the environment protection.
c．Environment protection is important. Many companies have started to respond the universal call of conversation by developing and applying various environmentally friendly technologies in the production since AII0. The pollution includes carbon dioxide and heat emissions, discharges of hazardous chemical substances into the atmosphere or waterways and other waster produced.
d．Environment protection is necessary. In terms of energy conversation, many companies are able to ensure that A00 per cent of its new products consumed less energy during operation than the previous models. In particular, the on-demand energy-efficient technologies incorporated into its copying machines and laser beam printers have resulted in a cumulative reduction in carbon dioxide emissions. At production sites, in terms of energy conservation, the basic unit of carbon dioxide from production declined CH per cent compared with AII0.
e．Environment protection is important. Many companies are now spending lots of resources in developing new environmental technologies and ecological components such as lead-free lenses, excellent chromium-free screws, solar cells, plastic recycling and high-performance Eco-Polymer, to name just a few. All these technologies not only help protect the environment but also help increase users’ work and cost efficiency.
f．We should pay great attention to environment protection. Products and technologies can become outmoded as quickly as they once appeared. Rather like a mayfly, the life span of most products is disturbingly brief and a good number of the current products featured in this book will, by the time of it is published, already be redundant or replaced by newer, brighter versions, with even more potential to perform and please.
g．Recycling is important to help protect our environment. Little can be bought without the disposal of something else; this is the reality of modem consumption. The new and shinny arrives while the old is rejected both physically and psychologically. Years of ignoring the environmental problem of the disposal of goods have led to an acute situation in China as elsewhere. Re-use can be a way of delaying the burial or cremation of a ’dead’ product and there is a thriving industry in developed countries of exporting used cars and of the repair, re-sale and export of used telephones, video players and televisions to developing nations. The main difficulty associated with this type of re-use economy is that it really only defers the ultimate disposal of the product, and to a country that may be without regulated disposal system.
h．Environment protection is important. Some people vigorously protested lack of control over automobile exhaust fumes, industrial smoke, unhealthy open dumps, untreated sewage, and chemical wastes that were being thrown into lakes and rivers. The agency was created to control and abate pollution in the basic areas of air, water, solid waste, pesticides, noise, and radiation. The government offers incentives to encourage cleanup efforts, and law enforcement when necessary to curb pollution.
i．The Chinese government pays great attention to environment protection. The environment protection agency conducts extensive research, provides technical assistance to provinces and cities, determines tolerable limits of pollution, and establishes timetables to bring polluters into line with standards. Since most of the requirements are of recent origin, industries are given reasonable time, often several years, to conform to standards. Monitoring data show a nationwide decline in at least two air pollutants—carbon monoxide and sulphur oxides. Current auto emission controls resulted in a reduction of carbon monoxide and hydrocarbons of nearly HE percent over cars made before B00H. The agency of environment protection also enforces noise standards for trucks and airplanes.
j．People here demand everything to be quick and convenient—to change their lifestyle and fast-food culture is difficult. That’s why I think we should start with education so that the next generation can develop an environment-friendly lifestyle. Youngsters need to learn about sustainable development. Environment protection is a must in education.
答案解析:[解析] environment protection环保。recycling废物循环利用。 sustainable development可持续发展。environment-friendly有利于环
第22题:[判断题]人在梯子上时，禁止移动梯子。
A.正确
B.错误
参考答案:A
第23题: [单项选择]小儿急性肾小球肾炎起病前常有皮肤感染，其前驱期多为（）
A. 1周以内
B. 1～2周
C. 2～4周
D. 3~4周
E. 4～5周
参考答案:C
第24题:[单选题]使用氧气、乙炔时，两瓶之间距离不得小于（）m。
A.4
B.5
C.10
D.15
参考答案:B
第25题:[单选题]使用人力制动机时，要提前做好( )等准备工作。
A.检闸、试闸
B.选闸、试闸
C.检闸、选闸
D.试闸、磨闸
参考答案:B
第26题: [单项选择]在旅游活动中，旅游者和旅游工作者的情绪会互相影响，这体现了旅游者情感特征的（）。
A. 兴奋性
B. 感染性
C. 易变性
D. 多虑性
参考答案:B
第27题: [多项选择]关于自理报检单位的义务，以下表述正确的有( )。
A. 遵纪守法，对报检的真实性负责
B. 应提供必要的检验检疫工作条件
C. 应按规定缴纳检验检疫费
D. 应加强本单位报检员的管理，并对报检员的报检行为承担法律责任
参考答案:A,B,C,D
第28题:[单选题] 在电动机的控制和保护电路中,安装的熔断器主要起（ ）。
A.过载保护作用
B.短路保护作用
C.漏电保护作用
参考答案:B
第29题:[单选题]普速线路起道地段要有足够的道砟，全面起道，起道量超过（）mm时，一般应用仪器测量并设置起道标桩，按标桩起道。
A.10
B.15
C.20
D.25
参考答案:B
第30题:[判断题]为列车调度需要而在正线上安排运行的非载客列车是专用列车。
A.正确
B.错误
参考答案:B
第31题:[单选题]关于B超检查在诊断尿路结石方面的价值,下列哪项是错误的
A.能发现尿路片不能显示的小结石和透光结石
B.能发现结石所致的肾脏结构改变
C.可直接显示双肾功能改变
D.可用于无尿、慢性肾衰竭患者
E.可用于对碘剂过敏或孕妇合并结石患者
参考答案:C
第32题:[多选题]《铁路旅客运输规程》第十八条规定,旅客在全部旅途中分别乘坐( )时,可发售全程普通硬座车票,对乘坐空调车区段另行核收空调车与普通车的票价差额。
A.空调车
B.普通车
C.硬座车
D.软座车
参考答案:AB
第33题:[判断题]从药膳学的观点出发， 中药材 烹制药膳，
A.正确
B.错误
参考答案:B
第34题:[判断题]申请汇算清缴退税的税款将退至填报的本人在中国境内有效的银行账户中。(
A.正确
B.错误
参考答案:A
您的退税申请经审核通过后,税款将退至您填报的本人在中国境内有效的银行账户中。
第35题:[单选题][ ]网络消费者以满足个人特殊爱好和情趣为目标。
A.隐秘心理
B.安全心理
C.求实心理
D.偏好心理
参考答案:D
第36题: [多项选择]泰伦斯·肯尔和艾伦·肯尼迪提出将组织文化分为哪四种类型（）
A. 硬汉式组织文化
B. 攻坚文化
C. 精神文化
D. "拼命干、尽情玩"文化
E. 过程文化
参考答案:A, B
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