2. 外语
  3. Viewers simply can watch what is on ______ a presentation via a keyboard, touch screen or mouse.

Viewers simply can watch what is on ______ a presentation via a keyboard, touch screen or mouse.

admin2011-01-26  53
问题 Viewers simply can watch what is on ______ a presentation via a keyboard, touch screen or mouse.
选项 A、and press on
B、or interact with
C、by pressing
D、or interpret to
答案B
解析 选择关系和结构两个方面考虑都需要B。
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