【单选题】
Take action on those things that will have the biggest ___ impact on your life with the least amount of effort.
A. portable
B. positive
C. sophisticated
D. moderate
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相关试题
【单选题】
The adoption of this measure will greatly reduce the ___ of greenhouse gas emissions (排放物), which may help slow global warming.
A. loan
B. decline
C. release
D. response
【单选题】
I think I have a healthy lifestyle. I eat a lot of fruit and vegetables, and I’m a ___ drinker.
A. moderate
B. heavy
C. gradual
D. delicate
【单选题】
In a way the human race needs to improve its mental and physical qualities if it is to deal with the more and more ___ world and meet new challenges.
A. typical
B. complex
C. rational
D. orderly
【单选题】
If a person simply does not care about this activity, it’s ___ impossible to get him to participate.
A. barely
B. seldom
C. hardly
D. practically
【单选题】
Sometimes, even when the mind ___ functioning, the body keeps on working normally.
A. ceases
B. arouses
C. regulates
D. specializes
【单选题】
Jeffery expressed his ___ about the health and fitness of his co-workers, but they said they didn’t want to “waste time” on an exercise bike or jogging.
A. agony
B. concern
C. addiction
D. feedback
【单选题】
Such chemicals are indeed negatively ___ those humans to whom they are expose D.
A. risking
B. detecting
C. impacting
D. overwhelming
【单选题】
We regret for selling you the faulty product, and our company has agreed to ___ you by $500.
A. match
B. reverse
C. reward
D. compensate
【单选题】
This lecture taught me how to manage my time better to include my online studies in my busy ___.
A. schedule
B. outline
C. structure
D. responsibility
【单选题】
Generally speaking, an Irish person will not accept an offer straight away; he will ___ once or twice first before accepting it.
A. receive
B. decline
C. summarize
D. polish
【单选题】
There is every possibility that many species (物种) of animals will die out because of their disappearing food ___.
A. mode
B. source
C. pattern
D. foundation
【单选题】
As a college student, you should enjoy learning and get yourself ___ in those things that interest you.
A. concerned
B. devoted
C. involved
D. pursued
【单选题】
The name of Hitler (希特勒) has always been associated with war and ___ killing in the minds of those people who lived through World War Two.
A. imaginary
B. multiple
C. indispensable
D. massive
【单选题】
He works hard every day to make more money, but he ___ his health, time with his family, and the hobbies he once love D.
A. neglects
B. reminds
C. ceases
D. Declines
【单选题】
I asked a passenger sitting beside me if our train was the Westlake Express train, and he said he ___ of it.
A. not even heard
B. had not even heard
C. even not heard
D. ever had not heard
【单选题】
Whatever you say in the paper has to ___ your own thinking; hence simply repeating the professor’s opinions or whatever is in the readings will not get you very far.
A. ignore
B. arouse
C. reflect
D. release
【单选题】
We are sorry to know that they did not succeed ___ the project for lack of necessary funds.
A. to fulfill
B. to have fulfilled
C. in fulfilling
D. with fulfilling
【单选题】
It is surprising that fewer students were prepared to undertake the ___ to hand in written work on a regular basis, or to study over long periods.
A. engagement
B. commitment
C. authority
D. aspiration
【单选题】
Emily felt hurt and ___ by a close friend who had borrowed a considerable sum of money to pay for a house and then took it as a gift, never thinking of giving back the money.
A. conflicted
B. curbed
C. swollen
D. betrayed
【单选题】
In 1988 the old system was ___ in the country and a new system was introduced to take effect in 1990.
A. transmitted
B. abolished
C. assumed
D. compensated
【单选题】
We should not ___ ourselves to the classroom. We should go out of the classroom, see the world and talk to others as much as we can.
A. entertain
B. confine
C. assign
D. involve
【单选题】
I have always been grateful ___ Fred __the generous and helpful information when I was at the crossroads.
A. to … for
B. to … with
C. for … with
D. for … to
【单选题】
I think we both need to ___ the past, be happy about what we had for a time, learn from our experiences, and move on from there.
A. let go of
B. give authority to
C. make sense of
D. keep up with
【单选题】
My brother and I managed to ___ with each other and we soon made peace after a week’s quarrel.
A. heal
B. reconcile
C. respond
D. advocate
【单选题】
The two robbers in a stolen car tried to ___ a police roadblock (路障), but faile D.
A. break in
B. break off
C. break up
D. break through
【单选题】
Because of his long illness, Lee’s English level had dropped, but he was determined to ___ the other students by working harder.
A. put up with
B. catch up with
C. get along with
D. fill up with
【单选题】
We appreciate your efforts in making changes in your schedule and think that this new arrangement is now ___ to us.
A. agreeable
B. sustainable
C. portable
D. indispensable
【单选题】
The woman who died in a car crash last Saturday in the suburbs has been ___ as Kate Johnson, a 25-year-old office clerk.
A. justified
B. identified
C. notified
D. classified
【单选题】
My nephew failed in the College Entrance Examination, and we were all very sorry that he did not ___ to the university.
A. take it
B. get it
C. make it
D. succeed it
【单选题】
Almost half of that group will experience stress ___ enough to call for professional help.
A. tense
B. moderate
C. bearable
D. intense
【单选题】
If you grow too fast your entire economy could completely shut down and bring growth to a(n) ___.
A. halt
B. cease
C. peak
D. epidemic
【单选题】
I tried my best to drive inside in order to avoid the edges that might make me ___ the steep slope.
A. slip down
B. settle down
C. bring down
D. turn down
【单选题】
When the driver heard that there was a bomb on the bus, he immediately ___ to the side of the highway and radioed the police.
A. put out
B. took off
C. pulled over
D. slipped off
【单选题】
She was very ___ to become a manager in our customers’ office, but finally accepted our offer.
A. eager
B. intelligent
C. ridiculous
D. reluctant
【单选题】
In the race, it looked as if he would be the first, but then another young man who was close behind him put on speed and ___ by a few seconds.
A. beat him for it
B. beat him to it
C. beat him up
D. beat it to him
【单选题】
It is really helpful to have someone like you that we can ___ and count on during difficult times.
A. lean on
B. get to
C. hang on
D. get by
【单选题】
Women have a greater ability to ___ names with faces than men do, and they are also better at recalling lists.
A. associate
B. compare
C. engage
D. involve
【单选题】
He was always ready to help others and managed to ___ his friends ____being hurt.
A. expose … to
B. confine …to
C. restrict … from
D. shield … from
【单选题】
Older people are less likely to be ___ their negative emotions (情绪) and more likely to focus on the positive.
A. reserved for
B. caught up in
C. beat up to
D. counted on
【单选题】
I don’t have any bandage, so I have to ___ pressure to the wound to keep the bleeding down.
A. apply
B. involve
C. fulfill
D. establish
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我国射线 探伤标准规定，焊缝质量分为四个等级，I级焊缝内允许有少量的气孔和夹渣
【单选题】
曲轴轴颈刮伤一般由烧伤轴瓦引起的，当刮伤不严重时，可采用___进行修复。
A. 喷涂法
B. 电镀法
C. 堆焊法
D. 手工修磨法
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不爱护设备的做法是___。
A. 保持设备清洁
B. 正确使用设备
C. 自己修理设备
D. 及时保养设备
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电机中的铁心吸合时噪声增大，是由于电磁离合器___。
A. 线圈电流太小
B. 线圈线头松动
C. 衔铁距离过大
D. 线圈供电电压不足
【单选题】
滚珠丝杆副的丝杆支承轴承的压盖压合情况不好将会导致___故障。
A. 过载
B. 窜动
C. 爬行
D. 过载、窜动、爬行
【单选题】
带标准锥柄检验棒，莫氏锥度用标准莫氏环规着色检查，接触面积应达___以上。
A. 50%
B. 80%
C. 95%
D. 30%
【单选题】
材料牌号，12 CrNi3渗碳，淬火，回火HR C58～63，工件___表面硬度要求高，耐磨性好，有很好的韧性和高强度的零件。
A. 形状简单
B. 形状复杂
C. 外形光滑
D. 外形平整
【单选题】
常用的传动装置的传动方式有机械传动，液压(气压)传动和___传动。
【单选题】
精密机床精密零件的修复：各类精密机床的加工精度和使用寿命取决于精密零件的制造和___，设备大修理中，零件的修复是零件恢复精度的一种手段。
A. 组装过程
B. 零件保养
C. 装配精度
D. 生产过程
【单选题】
要安排好培训计划，做好指导前的准备工作，做到有组织，有计划地进行___，要做到定时间，定地点，定内容，定进度，定要求，有练习，有考核。
【单选题】
齿形误差超差，齿轮两侧的齿形，一侧外凸于标准渐开线，另一侧内凹于标准渐开线，这是由于滚刀安装时没有对准工件回转中心，造成滚刀左右齿廓的实际压力角不等，压力角大的一侧齿形内凹与标准渐开线，压力角小的一侧齿形外凸于标准渐开线，使整个齿呈___。
A. 对称齿形
B. 螺旋状态
C. 偏离中心状态
D. 不对称齿形
【单选题】
深孔，是指___的孔。
A. 孔的深度大于10mm
B. 孔的深度大于100mm
C. 孔的深度大于直径5倍以上的孔
D. 孔的直径大于深度5倍
【单选题】
低压电器根据它在电气线路中的地位和作用，通常按___方式分类。
【单选题】
三坐标测量机是利用点位测量原理工作的，即借助测量机采集零件表面上一系列有意义的空间点，然后通过___，求得这些点组成的特定几何元素的位置及其形状。
A. 集中处理
B. 分析处理
C. 计算处理
D. 数字处理
【单选题】
液压管接头松动或密封不严，将使___。
A. 液压系统产生冲击
B. 空气混入液压系统
C. 节流缓冲装置失灵
D. 液压元件摩擦加剧
【单选题】
滚珠丝杠副的丝杆与导轨不平行将会导致___故障。
A. 过载
B. 窜动
C. 爬行
D. 过载、窜动、爬行
【单选题】
下列有关平行度叙述错误的是___。
A. 线对线垂直度公差带是距离为公差值t，且垂直于基准线的两平行线之间的区域
B. 线对面垂直度公差带在给定方向上是距离为公差值t,且垂直于基准平面的两平行平面之间的区域
C. 面对面垂直度公差带是距离为公差值t，且垂直于基准平面的两平行平面之间的区域
D. 面对线垂直度公差带是距离为公差值t，且垂直于基准线的两平行平面之间的区域
【单选题】
减小滚动轴承配合间隙，可减小主轴承内的___，以提高滚动轴承主轴的旋转精度。
A. 热胀量
B. 倾斜量
C. 跳动量
D. 过盈量
【单选题】
轨道安装，在吊车梁所弹的中心线上铺好橡皮垫，将轨道放在垫上并用鱼尾板将轨道连成一体，大致调成一条直线后用压板，螺栓将轨道与吊车梁连接起来，并校正轨道的___和直线。
A. 平行度
B. 平直度
C. 直线度
D. 水平度
【单选题】
测量环境条件中___是引起误差的主要来源。
A. 照明
B. 振动
C. 温度
D. 所有因素
【单选题】
用新的标准圆柱铰刀铰削高精度孔时，必须先将铰刀直径___到与工件相符的尺寸精度。
【单选题】
为减少或消除随机误差，通常取测量次数为___。
A. 2 次
B. 25 次
C. 5-15 次
D. 至少20 次
【单选题】
考虑箱体工件划线工艺时，不用分析考虑___。
A. 箱体的第一划线位置
B. 箱体的体积大小
C. 箱体的加工工艺
D. 箱体的材料成份
【单选题】
横梁夹紧装置与立柱夹紧面接触不良，由于横梁夹紧时受力___，致使横梁移动时其平行度发生变化，此时可检查夹紧装置与力柱表面的接触情况，并修刮横梁夹紧装置工作面，直至接触良好。
A. 不均衡
B. 分布不均匀
C. 过大
D. 过小
【单选题】
大型设备机械零件的特点是大、重、精度要求不高，所以其修复常用焊修、镶补，摸、接、粘接等修复方法，但有一个___，不能降低零件的强度和刚性及设备的力学性能，不能大幅度降低设备的使用寿命。
【单选题】
发生事故时，必须及时向领导报告，并保护好___，召开事故分析会。
A. 人身安全
B. 设备
C. 现场
D. 工具
【单选题】
建立具有特定的恒定温度与相对湿度条件的人工气候室，温度范围在20～25℃，控制精度最大误差为±1℃相对湿度为___，控制精度最大误差为±10﹪。
A. 45％～70﹪
B. 50％～60﹪
C. 55％～65﹪
D. 50％～70﹪
【单选题】
传动链误差是指联系传动链始末两端传动元件间相对运动的误差。一般用传动链末端元件的___来衡量。
A. 尺寸误差
B. 位置误差
C. 转角误差
D. 变形误差
【单选题】
热继电器常闭触点接触不良，应采取以下___处理方法。
A. 检查电路
B. 检查负荷电流是否与热元件相匹配
C. 清除触头表面灰尘或氧化物
D. 调节合适的环境温度
【单选题】
箱体工件划线工作中，___不是划线时应注意的要点。
A. 划线前校对工件的毛坯尺寸
B. 了解工件加工工艺路线
C. 确定好第一划线位置
D. 测量工件表面硬度值
【单选题】
修轴换套：新套以0～0.03mm过盈量压入轴座装在机架上，膛内孔尺寸按修复后的直径留出___。
【单选题】
常遇到高温(38℃)以上，高温伴强辐射热，以及高温伴有高湿的异常气象条件，在这种环境下所从事的工作都是___。
A. 特殊工种
B. 高温工种
C. 高压作业
D. 高温作业
【单选题】
可能引起机械伤害的做法是___。
A. 转动部件停稳前不得进行操作
B. 不跨越运转的机轴
C. 旋转部件上不得放置物品
D. 转动部件上可少放些工具
【单选题】
在机修、平尺检定和平板平尺制造过程中，常用___检测平板的平面度。
A. 研点检测法
B. 平尺检测法
C. 光隙检测法
D. 坐标检测法
【单选题】
平面导轨的直线性误差，平面导轨___
A. 只存在垂直面内的直线性误差
B. 只存在水平面内的直线性误差
C. 存在垂直面内的直线性误差或水平面内的直线性误差
D. 存在垂直面内的直线性误差和水平面内的直线性误差
【单选题】
独立操作训练法，指导者要对学员进行独立操作训练，使学员在反复，多样的操作训练中巩固其所学的操作技能，指导者还可在学员的操作过程中发现问题并及时纠正，从而___其操作水平。
【单选题】
交流接触器Ε形铁心中柱端面留有0.01～0.02mm的空隙是为了___。
A. 散热
B. 减少铁心振动
C. 减少剩磁影响
D. 减少磁阻
【单选题】
若螺母与丝杠的同轴度不符合要求，可通过___方法来修整。
【单选题】
Y3150 型滚齿机刀架垂直进给丝杠消隙油缸的油压要求是___MPa。
A. 0.5
B. 1
C. 1-0.5
D. 1.2-1.5
【单选题】
用龙门刨床自身检查所加工床身导轨的精度,必须注意,测量误差是加工误差和___的综合误差,最终要使其精度和技术要求达到图样的要求。
A. 龙门加工基准误差
B. 龙门原始误差
C. 龙门刨自身误差
D. 龙门安装基准误差
