【单选题】--- How many subjects are you good at? --- Three, ______, English, Chinese and politics.
【简答题】数控机床坐标系X、Y、Z各轴及其正方向符合( )坐标系规定。
【单选题】How many _______ are there in the international village? [ ]
【简答题】标准统一规定,机床的坐标系应该符合()手螺旋定则。
【判断题】数控车床定位时,必须是六点完全定位,才能符合机床坐标系的规定
【单选题】How many ________ are there in the international village? [ ]
【简答题】数控机床坐标系采用()符合()法则,一般先确定()轴。
【单选题】How shall we describe Chinese ?