【简答题】定位基准是指______________________________基准。
【判断题】定位基准是指在机械加工中用来确定工件在机床或夹具上的正确位置的基准。
【单选题】下列哪种运输方式不是常见的不合理运输( )。
【简答题】单端输出,具有 、_____ 、 、能较好地抑制温漂的差分放大电路。
【单选题】他们试图预测这场足球比赛的结果。
A.
They tried forecasting the result of the football match.
B.
They tried and forecasted the result of the football match.
C.
They tried to forecast the result of the football match.
【单选题】他们试图预测这场足球比赛的结果。
A.
They tried forecasting the result of the football match .
B.
They tried to forecast the result of the football match.
C.
They have tried to forecast the result of the football match .