【填空题】
in sb. 's words,count on,make sense of ,reserve for, shield from,call on, sum up, relate to ,in need,
be/ get caught up in
This restaurant is very popular because it has some separate, smaller rooms [ ] families with small children
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相关试题
【填空题】
in sb. 's words,count on,make sense of ,reserve for, shield from,call on, sum up, relate to ,in need,
be/ get caught up in
Betty loves reading.[ ],“Reading is the most wonderful thing in the world.”
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in,
Every one of you has made a contribution and I [ ] knowledging what each of you has done to make this academic convention such a success.
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in
They all tried to talk [ ], but I couldn't hear anything they said
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in,
Yellow flowers in the field always [ ] me [ ] my childhood in the countryside
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in,
We have been practicing for so long and so hard that our team should [ ]winning the game
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in,
Research on genes will [ ] exciting new medical treatments.,
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in,
My family [ ] on my father's unemployment benefit after he lost his job
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in,
Many subway riders read books or listent music in order to [ ] their time on the way to work
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in,
In order to make sure he would be able to attend the meeting, I called him up two weeks [ ]
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in,
In order to [ ]physical exercise, you have to exercise regularly and for at least half an hour each time
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
Mary was a careful speaker, every word seemed to have been [ ] before it was allowed to escape through her lips
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
He has a special feeling for the brilliant birds, and each spring he eagerly [ ] their return
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
Thanks to the [ ] of air transport,everyone is free to go anywhere at any time
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
John believes that the [ ] of food to the hungry is more helpful than giving money
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
When she heard it was snowing in the city they were going to, she [ ] two more sweaters into her bag.
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
During our stay in Europe we visited many places of [ ] interest, including several castles
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
The wedding ceremony of my sister was a very [ ] experience for our family
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
He was [ ]when he discovered that he didn't have enough money to pay for the red wine he had ordered
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
The local government is pressed to find new places to [ ] dump waste
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
The new system designed to [ ] harmful emissions排放物) from factories will be put into use soon
【填空题】
explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
It is so difficult to [ ] the bottom of the ocean because some parts are very deep.
【填空题】
explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
It was about 30 seconds before Alex [ ] from the water, we were quite scared
【填空题】
explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
We often [ ] that when other people do the same things as we do, they do them,for the same reasons; but this assumption is not always reasonable
【填空题】
explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
There is widespread concern that the rising unemployment may [ ] a threat to social stability.
【填空题】
explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
After a(n) [ ] physical exam, my doctor said I was in good condition except that my blood pressure was a little high
【填空题】
explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
7 It is well known that China is a country with rich natural [ ] and a very big population.
【填空题】
explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
Some people believe that the earth can [ ] enough food to support at least twice its present population
【填空题】
explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
Sam [ ] the gift of imagination from his family, but he lacked the driving power to take action
【填空题】
explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
A bee that has found honey is able to [ ] to other bees the information they need in order to collect the honey
【单选题】
在___时间内电流所做的功叫做电功率。P8T40
【单选题】
对单匝线圈来说,其产生的磁通与流过线圈电流的比值叫该线圈的___,也叫电感,用L表示。P11T54
【单选题】
电器的触头系统属于电器的___P15T82。
【单选题】
触头按工作性质分为静触头和___。P16T83
【单选题】
直流发电机励磁绕组与电枢绕组不相连,励磁电流由另一个独立电源供电,这样的发电机为___。P18T93
A. 并励发电机
B. 他励发电机
C. 串励发电机
【单选题】
由两以上匝数不同的线圈绕在一个构成闭合回路的铁心上组成的电气装置是___P19T100 。
【单选题】
使用万用表选用量程时,应尽可能使表针移动至满刻度的___左右为宜。P20T102
【单选题】
各相绕组的首端与首端之间的电压称___。P20T104
【单选题】
在一个周期内只通过半个周期交流电,这样的整流方式为___。P21T109
【单选题】
电机本身是机械能和电能互相转换的设备___。P30T152
【单选题】
担当牵引列车任务的机车叫做___。P42T202
推荐试题
【单选题】
对自由电弧的弧柱进行强迫“压缩”,就能获得导电截面收缩得比较小、能量更加集中、弧柱中气体几乎可达到全部等离子体状态的电弧,就叫___
A. 等离子弧
B. 自由电弧
C. 等离子体
D. 直流电弧
【单选题】
等离子弧焊接是利用___产生的高温等离子弧来熔化金属的焊接方法。
A. 钨极氩弧焊焊枪
B. 手弧焊焊枪
C. 等离子焊枪
D. 碳弧气刨枪
【单选题】
微束等离子弧焊的优点之一是,可以焊接___的金属构件。
A. 极薄件
B. 薄板
C. 中厚板
D. 大厚板
【单选题】
大电流等离子弧焊的电流使用范围为___。
A. 50~500安
B. 550~600安
C. 650~700安
D. 800~1000安
【单选题】
从防止过热组织和细化晶粒的角度考虑,应___。
A. 减小焊接电流
B. 减小焊接速度
C. 增大弧长
D. 增大焊接电流
【单选题】
对于厚壁容器,加热和冷却速度应控制在___。
A. 10~20 ℃/小时
B. 20~30 ℃/小时
C. 50~150℃/小时
D. 150~250 ℃/小时
【单选题】
选择坡口型式时,应尽量___焊缝金属的填充量。
【单选题】
焊接结构的使用条件是多种多样的,当构件在低温工作或冲击载荷工作时,容易发生___。
A. 蠕变
B. 腐蚀性破坏
C. 脆性破坏
D. 塑性破坏
【单选题】
16Mn钢在低温条件下焊接应进行适当___。
【单选题】
焊接18MnMoNb的钢材时,宜选用的焊条是___。
A. E7015—D2
B. E4303
C. E5015
D. E5016
【单选题】
18MnMoNb钢焊接装配点固前应局部预热到___。
A. 50~100℃
B. 100~150℃
C. 150~200℃
D. 200~250℃
【单选题】
采用___焊接珠光体耐热钢时,焊前不需预热。
A. 氩弧焊
B. 埋弧焊
C. 手弧焊
D. 二氧化碳焊
【单选题】
15CrMo珠光体耐热钢焊后热处理的参数是___。
A. 680~720℃高温回火
B. 500~580℃ 回火
C. 900~950℃ 高温回火
D. 700~800℃ 高温回火
【单选题】
电渣焊不宜焊接下列___材料。
A. 1Cr18Ni9Ti
B. 16Mn
C. Q235
D. 15CrMo
【单选题】
防止焊缝出现白口的具体措施___。
A. 增大冷却速度
B. 减少石墨化元素
C. 降低冷却速度和增加石墨化元素
D. 增大冷却速度和增加石墨化元素
【单选题】
二氧化碳气体保护焊焊接灰铸铁时,应用的焊丝牌号是___
A. H08Mn2Si
B. H08A
C. H08MnA
D. H08或H08MnA
【单选题】
球墨铸铁焊时,产生裂纹的可能性比灰铸铁___。
A. 大得多
B. 小得多
C. 一样
D. 以上均有可能
【单选题】
球墨铸铁热焊时选用的焊条是___
A. EZC
B. EZNiFe—1
C. EZCQ
D. 铸607
【单选题】
铝及铝合金焊接时,熔池表面生成的氧化铝薄膜熔点高达___。
A. 1025℃
B. 2850℃
C. 2050℃
D. 3000℃
【单选题】
手工钨极氩弧焊焊接铝镁合金时,应采用___
A. 丝331
B. 丝321
C. 丝311
D. 丝301
【单选题】
紫铜手弧焊时,电源应采用___。
A. 直流正接
B. 直流反接
C. 交流电
D. 交流或直流反接
【单选题】
物体在力的作用下变形,力的作用卸除后,变形即消失,恢复到原来形状和尺寸,这种变形是___
A. 塑性变形
B. 弹性变形
C. 残余变形
D. 应力变形
【单选题】
___对结构影响较小,同时也易于较正。
A. 弯曲变形
B. 整体变形
C. 局部变形
D. 波浪变形
【单选题】
为了减少焊件变形,应该选择___
A. V型坡口
B. X型坡口
C. U型坡口
D. Y型坡口
【单选题】
辗压主要用来矫正___工件的变形。
A. 厚板
B. 工字梁
C. 薄板
D. 十字型工件
【单选题】
当材料处于___拉伸应力作用下,往往容易发生脆性断裂。
A. 单向
B. 双向
C. 三向
D. 双向或三向
【单选题】
在下列焊接缺陷中,焊接接头脆性断裂影响最大的是___。
A. 咬边
B. 内部圆形夹渣
C. 圆形气孔
D. 弧坑冷缩
【单选题】
焊接时常见的焊缝内部缺陷有___等。
A. 弧坑、夹渣、夹钨、裂纹、未熔合和未焊透
B. 气孔、咬边、夹钨、裂纹、未熔合和未焊透
C. 气孔、夹渣、焊瘤、裂纹、未熔合和未焊透
D. 气孔、夹渣、夹钨、裂纹、未溶合和未焊透
【单选题】
焊接过程中,熔化金属自坡口背面流出形成穿孔的缺陷称为___。
【单选题】
64.在焊接应力及其他致脆因素共同作用下,金属材料的原子结合遭到破坏,形成新界面而产生的缝隙称为___
【单选题】
焊丝表面镀铜是为了防止焊缝中产生___
【单选题】
预防和减少焊接缺陷的可能性的检验是___。
A. 焊前检验
B. 焊后检验
C. 设备检验
D. 材料检验
【单选题】
下列试验方法不属于非破坏性检验的方法是___。
A. 煤油试验
B. 水压试验
C. 氨气试验
D. 疲劳试验
【单选题】
照相底片中呈不同形状的点式长条的缺陷是___。
【单选题】
破坏性检验是从焊件或试件上切取试样,或以产品的___做试验,以检查其各种力学性能、抗腐蚀性能等的检验方法。
A. 整体破坏
B. 局部破坏
C. 整体疲劳
D. 局部疲劳
【单选题】
疲劳试验是用来测定焊接接头在交变载荷作用下的___。
【单选题】
车床比其他机床应用得更加普通,约占总数的___。
A. 20%
B. 30%
C. 40%
D. 50%
【单选题】
白刚玉磨料可以磨下列___材料。
A. 高速钢
B. 铝
C. 硬质合金
D. 宝石