【判断题】研究设计目的在于得到理想和可信的研究结果
【单选题】MB是计算机的存储容量单位,lMB等于1024个( )。
【判断题】在RS触发器的逻辑符号中,用小圆圈表示低电平有效。
【单选题】The earliest organized adult education originated in _____________.
A.
by social and economic changes
B.
guided self-study and correspondence courses
C.
by studying together with children
D.
what they did not manage to learn earlier
E.
dates back to the eighteenth century
【单选题】The Oral Approach originated with the work of______ linguists.
【单选题】组内设计在用来研究练习时,最为理想的是研究练习的()
【简答题】A. transp or tation B. imp or t C. lab or D. exp or t