【单选题】
The pressure ___causes Americans to be energetic, but it also puts them under a constant emotional strain.
A. to compete
B. competing
C. to be competed
D. having competed
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相关试题
【单选题】
Having decided to rent a flat, we ___ contacting all the accommodation agencies in the city.
A. set about
B. set on
C. set out
D. set up
【单选题】
The old couple decided to ___ a boy and a girl though they had three children of their own.
A. adapt
B. adjust
C. adept
D. adopt
【单选题】
Mike was being ___for violent tendencies.
A. contended
B. consulted
C. counselled
D. insulted
【单选题】
I will___ Mr. Walters on this point.
A. refer to
B. commit to
C. contribute to
D. defer to
【单选题】
What happens in the next few days is___to our success.
A. critical
B. critic
C. prior
D. valid
【单选题】
She won’t___that there is a problem.
A. confer
B. concern
C. acknowledge
D. contemplate
【单选题】
This offer is___ for travel before the end of April.
A. effective
B. ineffective
C. invalid
D. valid
【单选题】
___ to British universities depends on examination results.
A. Admittance
B. Entry
C. Admission
D.
E. ntrance
【单选题】
The database is only ___ by authorized managers.
A. proved
B. accessible
C. approved
D. access
【单选题】
This traditional ___ is of indigo blue.
A. clothes
B. diversity
C. costume
D. institution
【单选题】
These cigarettes are a ___ of the best tobaccos.
A. blend
B. band
C. mixture
D. mess
【单选题】
The tennis players need total ___ during play.
A. concentration
B. section
C. depression
D. energy
【单选题】
He ___ that he was innocent.
A. announced
B. declared
C. disclosed
D. admitted
【单选题】
Columbus discovered America but did not ___ the new continent.
A. seek
B. investigate
C. search
D. explore
【单选题】
The trees ___their foliage every year.
A. repeat
B. grow
C. refresh
D. renew
【单选题】
Make a list of the various ___.
A. options
B. choice
C. optional
D. samples
【单选题】
I am well aware that this is a ___ job.
A. rough
B. tough
C. wealthy
D. rogue
【单选题】
I found their kindness quite ___.
A. strong
B. overweening
C. keen
D. overwhelming
【单选题】
The captain wasn’t ___ on having him in the team.
A. eager
B. keen
C. overwhelmed
D. anxious
【单选题】
He was ___at the prospect of seeing them again.
A. thrilling
B. blessed
C. thrilled
D. emotional
【单选题】
They ___ against travelling at night in such a dangerous country.
A. consul
B. advocate
C. counsel
D. recommend
【单选题】
It is absolutely vital that food supplied should be ___.
A. sustained
B. enhanced
C. exhausted
D. maintained
【单选题】
He must have had an accident, or he ___ then.
A. would have been here
B. had to be here
C. should be here
D. would be here
【单选题】
It was essential that the application forms ___ back before the deadline (截止日期).
A. must be sent
B. would be sent
C. be sent
D. were sent
【单选题】
We ___ our breakfast when an old man came to the door.
A. just have had
B. have just had
C. just had
D. had just had
【单选题】
The bridge was named ___ the hero who gave his life for the cause of the people.
A. after
B. with
C. by
D. from
【单选题】
It wasn’t such a good dinner ___ she had promised us.
A. that
B. which
C. as
D. what
【单选题】
The road now ___two kilometers beyond the river.
A. develops
B. extends
C. expands
D. widens
【单选题】
It was claimed that the level of alcohol in the man’s blood was ___ to cause an accident.
A. sufficient
B. adequate
C. enough
D. accurate
【单选题】
Medical care reform has become this country’s most important public health ___.
A. question
B. stuff
C. matter
D. problem
【单选题】
His retail business in the city___ rapidly between the wars.
A. enlarged
B. extended
C. widened
D. expanded
【单选题】
Many frogs ___ the sound of their voice using special sacs(囊) in their throat.
A. amplify
B. widen
C. expand
D. enlarge
【单选题】
Some old people don’t like pop songs because they cannot ___ so much noise.
A. resist
B. sustain
C. tolerate
D. undergo
【单选题】
I have kept that portrait where I can see it every day, as it always ___ me of my university days in London.
A. recollects
B. reminds
C. recalls
D. invokes
【单选题】
The article suggests that when a person is under unusual ___ he should be especially careful to have a well-balanced diet.
A. weight
B. stress
C. press
D. nerve
【单选题】
You should hire a more ___ manager than the one you currently have.
A. sufficient
B. effective
C. respective
D. efficient
【单选题】
Surgeons began to ___ their hands and arms with soap and water before operating.
A. scrub
B. enhance
C. rub
D. exhibit
【单选题】
He might let something ___ in a moment of weakness.
A. slip
B. leak
C. to slip
D. to leak
【单选题】
Do not ___ the salad until you are ready to serve.
A. mix
B. toss
C. fling
D. eat
【单选题】
The ___ for which he had fought all his life no longer seemed important to him.
A. aims
B. objectives
C. subjects
D. goals
推荐试题
【单选题】
《国务院关于预防煤矿生产安全事故的特别规定》规定：对___内2次或者2次以上发现有重大安全生产隐患，任然进行生产的煤矿，县级以上地方人民政府负责煤矿安全生产监督管理的部门、煤矿安全监察机构应当提请有关地方人民政府关闭该煤矿，并由颁发证照的部门立即吊销矿长资格证和矿长安全资格证，该煤矿的法定代表人和矿长5年内不得在担任任何煤矿的法定代表人或者矿长。
A. 3个月#
B. 2个月#
C. 1个月#
D. 4个月
【单选题】
《煤矿安全规程》对矿井有害气体中一氧化碳最高允许浓度是 ___
A. 0.0000024#
B. 0.000024#
C. 0.024#
D. 0.05
【单选题】
《煤矿安全规程》规定，进风井口以下的空气温度必须在___℃以上
【单选题】
《煤矿安全规程》规定，巷道贯通时，必须由___在现场统一指挥。
A. 矿长#
B. 总工程师#
C. 通风部门派主管通风人员#
D. 掘进部门主管人员
【单选题】
《煤矿安全规程》规定，煤矿企业应根据具体条件制定风量计算方法，至少___修订一次。
A. 每年#
B. 每3年#
C. 每5年#
D. 每10年
【单选题】
《煤矿安全规程》规定：每一移动式和手持式电气设备至局部接地极之间保护接电阻值不得大于___Ω。
【单选题】
《煤矿安全规程》是为了保障煤矿___的人身安全与健康，保障煤矿安全生产，防止煤矿事故与职业病危害而制定的。
A. 矿长#
B. 安全管理人员#
C. 从业人员#
D. 全体职工
【单选题】
II 类电气设备主要用于___。
A. 井下的防爆环境#
B. 井下的变电所#
C. 井下的非爆炸环境#
D. 地面工厂中使用的防爆设备
【单选题】
KJ95型煤矿综合监控系统是___传输于一体的综合性煤矿监控系统。
A. 监测、通讯、光纤#
B. 监测、报警、切断电源#
C. 电缆、光纤、信号#
D. 信息、数据、环境
【单选题】
T1代表设备的温度组别T1组，即设备的表面温度不超过___。
A. 200℃#
B. 300℃#
C. 180℃#
D. 450℃
【单选题】
T2代表设备的温度组别T2组，即设备的表面温度不超过___。
A. 420℃#
B. 380℃#
C. 300℃#
D. 135℃
【单选题】
T3代表设备的温度组别T3组，即设备的表面温度不超过___。
A. 80℃#
B. 200℃#
C. 180℃#
D. 135℃
【单选题】
T4代表设备的温度组别T4组，即设备的表面温度不超过___。
A. 80℃#
B. 120℃#
C. 180℃#
D. 135℃
【单选题】
T5代表设备的温度组别T5组，即设备的表面温度不超过___。
A. 400℃#
B. 120℃#
C. 180℃#
D. 100℃
【单选题】
一个矿井只要有___个煤（岩）层发现瓦斯，该矿井即为瓦斯矿井。
【单选题】
一套风门位置传感器由___个永磁元件和（ ）个磁敏元件组成。
【单选题】
一氧化碳传感器在0-100ppm测量范围内的基本误差是___。
A. ±2ppm#
B. ±4ppm#
C. 测量值的±5%#
D. 测量值的±6%
【单选题】
一氧化碳传感器在100-500ppm测量范围内的基本误差是___。
A. ±4ppm#
B. 测量值的±5%#
C. 测量值的±6%#
D. 测量值的±10%
【单选题】
一氧化碳传感器在调试过程中应注意___。
A. 空气干燥#
B. 空气潮湿#
C. 通风良好#
D. 支护良好
【单选题】
一氧化碳传感器调整好零点1min内显示值应___ppm。
A. 为0#
B. 小于1#
C. 小于2#
D. 小于4
【单选题】
一氧化碳相对密度为___。
A. 0.554#
B. 0.97#
C. 0.7168#
D. 1.34
【单选题】
一氧化碳爆炸浓度区间为___。
A. 13%-75%#
B. 5%-16%#
C. 13%-45%#
D. 4%-10%
【单选题】
一般风门开闭状态传感器的电路组件固定在___上。
A. 风门#
B. 门框#
C. 门柱#
D. 观察窗
【单选题】
一般风门开闭状态传感器的磁体组件固定在___上。
A. 风门#
B. 门框#
C. 门柱#
D. 观察窗
【单选题】
一般来说，___的风速以下为低段风速。
A. 3m/s#
B. 5m/s#
C. 3km/h#
D. 5km/h
【单选题】
一般来说，___的风速以上为高段风速。
A. 3m/s#
B. 5m/s#
C. 3km/h#
D. 5km/h
【单选题】
一般来说内存值是___。
A. RAM#
B. ROM#
C. CPU#
D. ALU
【单选题】
人员上下井时，必须遵守乘灌制度，听从把钩工指挥。开车发出后___进出灌笼。
A. 允许#
B. 严禁#
C. 不宜#
D. 不允许
【单选题】
入井（场）人员必须戴安全帽等个体防护用品，穿带有___的工作服。
A. 企业名称#
B. 反光标识#
C. 工种信息#
D. 化纤
【单选题】
入井人员必须随身携带自救器、___和矿灯，严禁携带烟草和点火物品，严禁穿化纤衣服。
A. 便携仪#
B. 防尘口罩#
C. 标识卡#
D. 有关工器具
【单选题】
入井人员必须随身携带额定防护时间不低于___min的隔绝式自救器。
A. 30#
B. 45#
C. 60#
D. 40
【单选题】
入井人员考勤定位系统中使用防爆设备必须在地面运行___小时方可下井使用。
A. 12#
B. 24#
C. 48#
D. 72
【单选题】
三级管是___控制元件。
A. 电压#
B. 电流#
C. 电压与电流#
D. 电阻
【单选题】
工作电流是二极管的___电流。
A. 具有稳定性的最小电流#
B. 具有稳定性的最大电流#
C. 最大电流#
D. 最小电流
【单选题】
工作面回风流瓦斯不大于___%。
A. 0.5#
B. 1#
C. 2#
D. 1.5
