【填空题】
11.机车___时,不得在外部站立或从事修理工作。
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【填空题】
12.禁止在机车、车辆走行中进入钩档内作业。禁止___地沟。.
【填空题】
13.拆装车钩时,应搭设___,禁止双足蹬踩地沟边缘。
【填空题】
14.柴油机甩车时,有关人员应站立于安全处所。柴油机甩车及盘动主发电机柴油机时,均应执行___制度,以防意外伤害。.
【填空题】
15.工作中严格执行劳动安全作业标准、规章制度,认真执行“上标准岗、干标准活、___,交标准班”的标准化作业程序。
【填空题】
16.搬运危险品、爆炸品及压力容器时,做到___。
【填空题】
17.凡运行途经电化区段的机车,必须严格执行电化区段作业制度。严禁到___作业,禁止用水冲洗机车上部。
【填空题】
18.各工种、各岗位职工和工作人员必须学习、掌握有关安全作业制度和安全知识,经___合格后,方准上岗作业。
【填空题】
19.保证机车“三项设备”作用良好,禁止在列车___擅自关闭“三项设备”。
【填空题】
20.机车在段、站内和途中运行时,不得向外___,防止信号机、桥梁、隧道或邻线列车刮伤、碰伤。
【单选题】
下列动物中,与人类亲缘关系最近的是()
A. 大象
B. 金丝猴
C. 黑猩猩
D. 阿拉伯狒狒
【单选题】
现代类人猿和人类的共同祖先是()
A. 黑猩猩
B. 猴子
C. 森林古猿
D. 以上都不是
【单选题】
在人类起源和发展的漫长历程中,森林古猿下地生活的原因是()
A. 其他动物的入侵
B. 生活环境发生变化
C. 为了扩大领地
D. 为了躲避敌害
【单选题】
下列关于现代类人猿与人类区别的叙述,不正确的是()
A. 运动方式不同
B. 制造工具的能力不同
C. 脑发育程度不同
D. 祖先不同
【单选题】
与类人猿相比,下列不属于人类特有的特征是()
A. 有复杂的语言
B. 使用工具
C. 直立行走
D. 大脑发达
【单选题】
下列关于人类和现代类人猿的叙述中,不正确的是()
A. 现代类人猿的生活方式为树栖,而人类在陆地上生活
B. 现代类人猿的生活方式主要是攀缘,而人类的运动方式为直立行走
C. 人类能够制造并使用工具,现代类人猿不会制造工具
D. 人类和现代类人猿都能直立行走
【单选题】
促使森林古猿向人类进化的最重要的外界因素是()
A. 生活环境的改变
B. 降雨量的加大
C. 气温的变化
D. 身体结构的变化
【单选题】
最早能直立行走,能够使用树枝、石块等来获取食物的古人类是()
A. “东非人”
B. “南非人”
C. 少女露西
D. 北京猿人
【单选题】
人类和黑猩猩有许多相似之处,这说明()
A. 黑猩猩是人类的原始祖先
B. 人类是由黑猩猩进化而来的
C. 人类是黑猩猩进化的一个分支
D. 黑猩猩和人类有着共同的祖先
【单选题】
下列有关人类与类人猿的关系的叙述,错误的是()
A. 类人猿是人类的祖先
B. 类人猿与人类的亲缘关系最近
C. 类人猿与人类都起源于森林古猿
D. 类人猿与人类在进化上产生不同的主要原因是各自生活的环境条件不同
【单选题】
研究结果表明:人类和类人猿的骨骼在结构上几乎完全相同;人和类人猿的盲肠相似;人和类人猿的胚胎在5个月前完全一样……这些事实说明()
A. 人类是由类人猿进化而来
B. 人类和类人猿有共同的原始祖先
C. 类人猿比人类高等
D. 现代类人猿也能进化成人类
【单选题】
直立行走使古人类能够
A. 将果实从树上摘下来
B. 保护环境,减小对环境的依赖
C. 将前肢解放出来,使用工具
D. 扩大活动范围,利于生存
【单选题】
下列不属于古人类能够使用火的意义是()
A. 改善了身体的营养
B. 有利于脑的发育
C. 提高制造工具的能力
D. 前肢解放出来
【单选题】
古人类能够更好地交流和合作是由于()
A. 火的使用
B. 语言的使用
C. 工具的使用
D. 直立行走
【单选题】
男性生殖系统中,能够产生精子的是()
A. 膀胱
B. 精囊腺
C. 阴茎
D. 睾丸
【单选题】
女性生殖系统中,能产生卵细胞的是()
A. 阴道
B. 子宫
C. 卵巢
D. 输卵管
【单选题】
胎儿在母体内发育的场所是()
A. 输卵管
B. 子宫
C. 卵巢
D. 阴道
【单选题】
人体内卵细胞完成受精的场所是(
A. 子宫
B. 卵巢
C. 输卵管
D. 阴道
【单选题】
胎儿和母体进行物质交换的场所是()
A. 子宫
B. 输卵管
C. 脐带
D. 胎盘
【单选题】
胚胎大约在母体子宫中发育()
A. 360天
B. 280天
C. 300天
D. 266天
【多选题】
风险是安全事故或健康损害事件发生的___的组成。可能性是指事故发生的概率。严重性是指事故一旦发生后,将造成人员伤害和经济损失的严重程度。
A. 可能性
B. 严重性
C. 事故发生的概率
D. 经济损失的严重程度
E. 其他相关资料
【多选题】
危险源辨识的主要内容有___。
A. 人员不安全因素
B. 机器不安全状态
C. 环境不安全状态
D. 管理的缺陷
E. 制度的不完善
【多选题】
风险点是指伴随的___,以及在设施、部位、场所和区域实施的伴随风险的作业活动,或以上两者的组合。
A. 设施
B. 部位
C. 场所
D. 区域
E. 事故发生机理
【多选题】
同一级别或不同级别风险按照从高到底的原则划分为___(即1、2、3、4),分别用“红橙黄蓝”四种颜色标示,实施分级管控。
A. 重大风险
B. 较大风险
C. 一般风险
D. 低风险
E. 没有风险
【判断题】
危险源辨识的范围是人的不安全行为和物的不安全状态。
A. 对
B. 错
【判断题】
任何危险源都会伴随着风险。只有危险源不同,其伴随的风险大小往往不同。
A. 对
B. 错
【判断题】
排查风险点是风险管控的基础。对风险点内的不同危险源或危险有害因素进行识别、评价、并根据评价结果、风险判定标准认定风险等级。
A. 对
B. 错
【判断题】
风险度越大,说明该系统危险性大。
A. 对
B. 错
【判断题】
风险是不可避免的,但是风险有大小。
A. 对
B. 错
【判断题】
一件事件发生的可能性很大或者频率很高,我们就可以理解为这个事件的风险很大。
A. 对
B. 错
【判断题】
隐患的分级是根据隐患的整改.治理和排除的难度及其导致事故后果和影响范围为标准而进行的级别划分。
A. 对
B. 错
推荐试题
【单选题】
Q3: What is special about Linda’s party?___
A. The party will last four hours .
B. Six people will attend the party .
C. They will have huge bags of candy .
D. They will play a new game called "GuessWho ".
【单选题】
Q4: What will Katy do to solve her problem?___
A. Go to Jason's party .
B. Go to Linda's party .
C. Attend both Jason's and Linda's parties .
D. Celebrate Halloween with her parents .
【单选题】
Q1: What is special about this year’s Black Friday shopping?___
A. Some stores offered bigger holiday discounts .
B. Some stores provided more choices of nightlife.
C. Some stores made efforts to attract young people .
D. Some stores opened much earlier than they used  to .
【单选题】
Q2: Why did some stores open at midnight on Thanksgiving night?___
A. To attract young customers .
B. To beat other stores for sale.
C. To let people sleep late the next day .
D. To keep people stay up for the night .
【单选题】
Q3: How many Black Friday shoppers were reported to go to the shops at midnight this year?___
A. 24 percent .
B. 37 percent .
C. 9.5 percent .
D. 23.5 percent .
【单选题】
Q4: What can we learn about the 15-year-old Jenny?___
A. She and her cousins went back home at midnight .
B. She liked the traditional 4 a.m. Black Friday.
C. She preferred midnight shopping to early  morning shopping .
D. She and her cousins got up very early to buy  discounted items .
【单选题】
Q1: Why did the woman decide to do a triathlon?___
A. Because she did it in college .
B. Because she wanted to be tough .
C. Because her sister did it and liked it .
D. Because her sister said it was good for her .
【单选题】
Q2: When did the man first do a triathlon?___
A. Last year .
B. In college .
C. Last week .
D. In high school .
【单选题】
Q3: How does the man feel about running?___
A. Boring.
B. Scaring .
C. Exciting .
D. Interesting .
【单选题】
Q4: Why doesn’t the woman like swimming in the triathlon?___
A. Because she fears that a big fish might eat  her .
B. Because she fears that she would get lost in  lakes .
C. Because she doesn't want to scare away  small fishes .
D. Because she doesn't like swimming with  many people .
【单选题】
Q1: What is the ratio of positive to negative emotions that can make a person happier?___
A. 1:3.
B. 3 :1.
C. 1 :10 .
D. 10 :1.
【单选题】
Q2: What is the most exciting finding about increasing positive emotions?___
A. It improves relationships .
B. It leads to greater success .
C. It helps develop creativity .
D. It contributes to good health .
【单选题】
Q3: What does the speaker say about negative feelings?___
A. People should turn every negative feeling  around .
B. Negative feelings can sometimes have  positive effects .
C. Negative feelings often cause people to  make mistakes .
D. People should never show negative feelings  in public places .
【单选题】
Q4: What is the main idea of the passage?___
A. People should learn to manage their  emotions .
B. People should be patient with their  negative feelings .
C. People should learn to analyze causes of  unhappiness .
D. People should identify as many positive  feelings as possible .
【单选题】
Q1: What are the man and woman talking about?___
A. Whether nature is magical and kind .
B. Whether nature is powerful and full of risks .
C. Whether Christopher was well prepared for the trip .
D. Whether Christopher's trip to Alaska was  worthwhile .
【单选题】
Q2: What can we learn about Christopher?___
A. He made a film about his trip to Alaska .
B. He wrote a story about his trip to Alaska .
C. He died while having an adventure in Alaska .
D. He learned how powerful and risky Alaska was .
【单选题】
Q3: What does the woman think about Christopher taking the trip to Alaska?___
A. He was too foolish .
B. He was really romantic .
C. He had a very kind heart .
D. He had a spirit for trying things .
【单选题】
Q4: Which of the following is NOT mentioned as something that would have saved Christopher’s life?___
A. A gun to hunt .
B. The map of the area .
C. Emergency food supplies .
D.
E. mergency communication equipment .
【单选题】
Q1: What speed can an avalanche reach within five seconds of taking off?___
A. At 8 miles an hour .
B. At 18 miles an hour .
C. At 80 miles an hour .
D. At 88 miles an hour .
【单选题】
Q2: According to the passage, under what circumstances may an avalanche occur?___
A. There are too many layers of snow on the  .
B. There is a layer of snow covering an entire  area .
C. The top layer of snow slides off the layer  below it .
D. The layer of snow below the surface  becomes unstable .
【单选题】
Q3: What are skiers advised to do to avoid being caught in an avalanche?___
A. Ski only in the official ski areas .
B. Look for solid snow to walk on .
C. Look out for each other while skiing .
D. Learn to control themselves in an  avalanche .
【单选题】
Q4: Why does the ski patrol use explosives?___
A. To dig holes in the snow .
B. To close the area for skiing .
C. To make an avalanche move on purpose .
D. To' check how different layers are holding  up .
【单选题】
Q1:What is conversation mainly about?___
A. The woman's happy college life the  man's doubt .
B. The woman's spending habits and the  man's concerns .
C. The man's reminding the woman of the  exam this Thursday .
D. The man's support for the woman over the  past 15 years .
【单选题】
Q2:What did the woman do last night?___
A. She bought a new leather coat .
B. She studied very hard for an exam .
C. She treated all her friends to dinner .
D. She went to a concert with her friends .
【单选题】
Q3:Where did the woman get the money?___
A. She just received her student loan .
B. She saved some money for herself .
C. She borrowed the money from her friends .
D. She asked her mom to send her the money .
【单选题】
Q4:What is the man?___
A. A teacher of biology .
B. An undergraduate student .
C. A freshman in biology class .
D. A graduate teaching assistant .
【单选题】
Q1: What is this passage mainly about?___
A. How businesses can compete with each  other .
B. How small businesses operate during  holidays .
C. How small businesses manage holiday  workers .
D. How can earn more money  during holidays .
【单选题】
Q2: According to Rubin, what can small companies do to thank holiday workers?___
A. Have talks with their families .
B. Give them good extra benefits .
C. Offer them expensive holiday tokens .
D. Show appreciation to them face to face .
【单选题】
Q3: What can small business owners do to help holiday workers get into the holiday spirit?___
A. Entertain them with big meals .
B. Let them enjoy some holiday games .
C. Give them handmade thank-you cards .
D. Send their families some holiday gift cards .
【单选题】
Q4: Who are supposed to benefit most from this passage?___
A. Workers who have to work during  holidays .
B. Employees who intend to earn extra  money .
C. Big companies that usually close on  holidays .
D. Small businesses that try to be more  competitive .
【单选题】
In the first two paragraphs of the passage the writer tries to tell us that___
A. he had lived in Washington D.C. for twenty years
B. he was very imaginative when he was a child
C. he had fond memories of his old neighborhood
D. )he had come from a very poor neighborhood
【单选题】
The writer ,as a child ,was very fond of playing in the basement because ___
A. it was bright and alive
B. it contained a movie house and a space station
C. it was ideal for playing hide-and-seek
D. it was surrounded by trees and flowers
【单选题】
How did the writer feel when he visited his old neighborhood in Washington D.C. ?___
A. Greatly surprised .
B. Very regretful .
C. Quite excited .
D. Very sad .
【单选题】
On his visit to his hometown ,the writer found the old apartment building___
A. see medunfit to live in
B. had been repaired
C. could hardly be recognized
D. looked dirty and smelt horrible
【单选题】
" Youcan never go home again "inthe last sentence of this passage means that___
A. one should never revisit his hometown after many years of absence
B. one will never find his hometown the same as it was in his childhood memory
C. avisit to one's hometown will bring back one's fond memories of home
D. avisit to one's hometown will bring back many sad memorie
【单选题】
We learn from the passage that Tracy died___
A. on December 8,1992
B. of brain damage
C. 24 hours after he fell off the roof of a car
D. in a car crash
【单选题】
Tracy's parents decided to donate Tracy's organs because___
A. Tracy told them to do so just before he died
B. they wanted to save others the pain of seeing a dear one die
C. David's life could continue in a meaningful way
D. they knew David was suffering from a hopeless liver disease
【单选题】
The meeting between the writer's family and Tracy's parents was arranged because___
A. the writer and her husband wished to express their thanks to Tracy's parents 
B. the local organ bank wanted to see how both families felt about the donation 
C. Tracy's parents wanted to see someone whose life had been saved by the donation
D. the two families were linked by the most bittersweet ties imaginable
【单选题】
The writer and her husband learned how Tracy died___
A. from his parents
B. from the organ bank
C. from the hospital
D. from the doctor who performed the operation
【单选题】
The meeting between the two families helped to ease the Marshes'suffering because___
A. they saw that David looked very much like their son
B. they saw that David had regained health with Tracy's liver
C. they now had someone to share their memories of Tracy
D. they now knew for sure they had done the right thing