The company ________ a working prototype in September at its annual Technology Innovation Conference in Beijing. <br> <br>A、demonstrated<br>B、displayed<br>C、exemplified

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题目内容（2023年初级学期期末统一考试英语机考）

The company ________ a working prototype in September at its annual Technology Innovation Conference in Beijing.

A、demonstrated
B、displayed
C、exemplified

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