2. 外语
  3. Programmed instruction received its major impetus from the work of behaviorist J. H. Skinner, who after years of research,______

Programmed instruction received its major impetus from the work of behaviorist J. H. Skinner, who after years of research,______

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问题 Programmed instruction received its major impetus from the work of behaviorist J. H. Skinner, who after years of research,______ a practical system in 1954.
选项 A、described
B、derived
C、imitated
D、devised
答案D
解析 devise vt.意为“设计：计划：发明”等，如：The Inquisition of the Medieval Ages devised many demoniac means of torture．中世纪的宗教法庭创造了许多骇人听闻的酷刑。describe vt．意为“描写，记述，形容，形容“。derive vt.，vi(常与from 连用)表示“得来：得到；来自：源自：出自”。Imitate意为“效法；模仿”，如：James can imitate his teacher’s speech per
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