【单选题】In my point of view, the best way to keep _____ is to go in for sports.
【简答题】In my point of view, QQ is an 1 means of communication. People don’t change their QQ numbers 2 , so they rarely run into the trouble of losing contacts. __ 3 ___ in college, I have joined various Q gr...
【单选题】车床主轴长径比小于12的刚性轴是阶梯空心轴。分析工艺方案时首先考虑车削方法,为了减少变形还要选择( )的方法,之后确定加工基准等。
【简答题】Correct the expressions used to present ideas in these sentences written by IELTS candidates. 5. In my point of view, poor nations need more financial support.
【单选题】【图片】图示阶梯轴零件按工序尺寸H加工键槽,采用长V形块定位,对此方案叙述正确的是
A.
定位基准是大端轴线,限制了4个自由度,无基准不重合误差。
B.
定位基准是小端轴线,限制了5个自由度,无基准不重合误差。
C.
定位基准是小端轴线,限制了3个自由度,有基准不重合误差。
D.
定位基准是大端轴线,限制了4个自由度,有基准不重合误差。
【单选题】In my point of view, the market is on an upward ( )and becomes more and more active.
【单选题】车床主轴长径比小于12的刚性轴是阶梯空心轴.分析工艺方案时首先考虑车削方法,为了减少变形还要选择()方法,之后确定加工基准等。
【单选题】Choose the similar word. In my point of view , it is important for the two leaders to have a good relationship.
【单选题】车床主轴长径比小于12的刚性轴是阶梯空心轴.分析工艺方案时首先考虑车削方法,为了减少变形还要选择( )方法,之后确定加工基准等.