相关试题
【单选题】
在固定循环完成后刀具返回到初始点要用指令___。
A. G90
B. G91
C. G98
D. G99
【单选题】
沿着刀具前进方向观察，刀具中心轨迹偏在工件轮廓的左边时，用___补偿指令。
【单选题】
粗车→粗磨→精磨工件外圆表面的表面粗糙度为___。
A. 4.5
B. 13.2
C. 5—11
D. 0.16—0.63
【单选题】
定位销用于工件圆孔定位，其中，短圆柱销限制___个自由度。
【单选题】
相对测量法相以对测量法是把放大了影像和按预定( )比例绘制的标准图形相比较，一次可实现对零件多个
尺寸的测量。
【判断题】
支承钉主要用于平面定位，
限制7个自由度。�
【判断题】
钻→扩工件内孔表面的表面粗糙度为10—20�
【判断题】
职业道德是指从事一定职业的人们，在长期职业活动中形成的操作技能
【判断题】
向企业员工灌输的职业道德太多了，容易使员工产生谨小慎微的观念。
【判断题】
端面多齿盘齿数为 72，则分度最小单位为 45 度
【判断题】
加工中心按照功能特征分类，可分为复合、卧式和三轴加工中心
【判断题】
逐点比较法圆弧插补的偏差判别式函数为：F=Xi4+Yi4-D2
【判断题】
钻工件内孔表面的表面粗糙度为大于等于 20
【判断题】
加工中心执行顺序控制动作和控制加工过程的中心是自动刀库
【判断题】
V 形架用于工件外圆定位，其中，短 V 形架限制 8 个自由度
【判断题】
在试切和加工中，刃磨刀具和更换刀具辅具后，一定要重新测量刀长并修改好刀补值和刀补号
【判断题】
粗车→半精车→精车工件外圆表面的表面粗糙度为 1.25—2.5
【判断题】
刀具直径为 8mm 的高速钢立铣铸铁件时，主轴转速为 1100r/min，切削度为 56m/min
【判断题】
外径千分尺可以测量工件的长度、板厚或壁厚等
【判断题】
机床通电后应首先检查各开关按钮和键是否正常
【判断题】
粗加工补偿值等于刀具半径乘以精加工余量
【判断题】
高合金工具钢不能用于制造较高速的切削工具
【判断题】
在形状公差中，直线度是用符号“→”表示
【判断题】
刀具直径为 10mm 的高速钢立铣钢件时，主轴转速为 820r/min，切削度为 56m/min
【判断题】
工件的六个自由度全部被限制，它在夹具中只有唯一的位置，称为重复定位
【判断题】
判别某种材料的切削加工性能是以 бb=0.637Gpa65 钢的υ60为基准
【判断题】
用内径千分尺测量两平行平面间距离时应取最大值
【判断题】
职业道德活动中做到表情冷漠、严肃待客是符合职业道德规范要求的
【判断题】
爱岗敬业作为职业道德的内在要求，指的是员工要热爱自己喜欢的工作岗位
推荐试题
【填空题】
controversial，assess， resolve，decrease，alter，abandon，indicate，undermine，compromise， conventional
It was reported the president had [ ]to fight If war was necessary,even if it meant destroying his chances of re-election
【填空题】
controversial，assess， resolve，decrease，alter，abandon，indicate，undermine，compromise， conventional
I had to [ ] one of my email accounts as it was filled with junk mail
【填空题】
controversial，assess， resolve，decrease，alter，abandon，indicate，undermine，compromise， conventional
Darwin's theory of evolution remains[ ] partly because it challenges the religious belief that God created man
【填空题】
advocate，involve，confine，respond，subsequent ，distinct ，intense， fulfill，circumstance， reconcile
He suggested a small but [ ] improvement on our former plan; I really appreciate it.
【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
She held her hand above her eyes to [ ]them [ ] the sun so that she could see more clearly the man in front of her
【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
The boy studied the signs for over an hour,but still could not [ ]them, so he turned to his teacher for help
【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
They [ ] the developed countries to commit more money to protecting the environment
【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
We will continue to care for those [ ] and work to establish a society that is generous and prosperous
【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
Many people [ ]careers and raising kids so that they forget that their marriages also need to be taken good care of
【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
My most favorite program is the one that deals with scientific subjects that ordinary people can [ ]
【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
Finally, I would like to [ ]by saying that it has been a tremendous pleasure to work with you all
【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
He is a person that you always [ ]when you need help.
【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
【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
