【单选题】Why not ______ help when you were in danger?
【单选题】I (asked) (asked for) him a question. I did not (ask) (ask for) a help.
【简答题】教育技术的基本理论是( ) a. 教学理论和学习理论 b. 媒体开发理论和教学设计理论 c. 媒体开发与教学管理 d. 传播与系统科学
【判断题】教育技术学的基本理论是教学理论和学习理论。
【简答题】A.Ask Johnston one more time. B.Ask Johnston to extend the deadline. C.Ask Johnston to clarify the submission date. D.Ask Johnston to spend more time explaining.
【判断题】教育技术学的基本理论都是教学理论和学习理论。