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题目内容
（陇东学院-大学英语(专升本)）
100. (单选题) So fast ___that it is difficult for us to imagine its speed.(本题1.0分)
A、 light travels
B、 travels light
C、 does light travel
D、 has light traveled
A、 light travels
B、 travels light
C、 does light travel
D、 has light traveled
参考答案
