【单选题】Last week we had a meeting _____ two days.
【简答题】We had a meeting _____ America last year.
【单选题】Susan: _____ a meeting with Laura yesterday? Luis: Yes, we had a meeting from 3 to 5.
【简答题】由于刻度盘分度差错或刻度盘移动而使仪表刻度产生的误差称为()。A. 系统误差
【单选题】Yesterday we had a meeting, at ______ Thomson gave us a presentation.
【单选题】We had a meeting, the purpose of(which/what) is unknown.