Teaching listening is _________
A. process oriented and teacher-centered.
B. process oriented and learner-centered.
C. product oriented teacher-centered.
D. process oriented and teacher-centered.
查看答案
Which of the following factors is not emphasized in the top-down model?
A. making use of the contextual clues
B. Listening for gist
C. Making sense of every sound
D. background knowledge to construct meaning
which activity is not a typical while-listening activity?
A. listen and act
B. listening for the gist
C. listen and tick
D. listen and draw
在ENVI 5.3中，想打开一个扩展名为.pix格式的PCI数据，应该使用File菜单下的（）命令。
在ENVI 5.3中，想打开一个.tif格式的文件，应该使用File菜单下的（ ）命令。
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