【单选题】Contrary to our ______, the Chinese Men’s Football Team lost to Iraq.
【单选题】________ everyone in our team played well in this football match, we ______ lost it.
【判断题】实时系统中的作业周转时间有严格的限制.( )
【判断题】装有半自动车钩的一端定义为1位端,另一端为2位端。
【单选题】关于数控机床坐标系的描述错误的是()
A.
它的坐标原点在机床上某一点,是固定不变的,机床出厂时已确定。
B.
假定刀具是永远静止的,而工件是相对于静止的刀具而运动。
C.
机床坐标系中X、Y、Z轴的关系用右手直角笛卡尔法则确定。
D.
机床坐标系中X、Y、Z轴的正方向,是使刀具远离工件的方向。
【判断题】确定机床坐标轴运动时,工件是相对不动的。
【单选题】_______ our national football team lost the to such a weak team, I didn’t have any doubt about the new coach’s ability.
【单选题】. ______our national football team lost the to a weak team as Syria by 2 to 3, I held no doubt about the new coach’s ability.