【单选题】下列不属于句子教学设计的重点的是( )。
【单选题】The people of China are working very hard to make concerted efforts to invigorate the country.
【单选题】在直径400mm的工件上车削沟槽,若切削速度设定为100m/min,则主轴转数宜选:( )r/min。
【单选题】在直径400mm的工件上车削沟槽,若切削速度设定为100m/min,则主轴转速宜选:
【单选题】在直径400mm的工件上车削沟槽,若切削速度设定为100m/rain,则主轴转速宜选( )r/rain。
【单选题】From the school name______on the package, we guessed that it might belong to a student of our sc
A.
14. From the school name______on the package, we guessed that it might belong to a student of our school. A.to mark
【单选题】在直径400mm的工件上车削沟槽,若切削速度设定为100m/min,则主轴转速宜选( )r/min。