【单选题】The office manager wants the computers ______by tomorrow.
【简答题】当用的电阻点焊设备焊接1 mm厚的钢板时,电极头的直径要求是 。
【单选题】当用的电阻点焊设备焊接1mm厚的钢板时,电极头的直径要求多少?
【单选题】当用的电阻点焊设备焊接1 mm厚的钢板时,电极头的直径要求是(
【简答题】The Information Technology Manager wants to improve the speech she has prepared for a conference next month.