1. All I got was a busy ( )when I dialed his number.(本题2.0分)
A、 sign
B、 noise
C、 voice
D、 signal

答案是:

标准答案:D
出自  青书学堂  >  长春工程学院-大学英语4(专升本)

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本题添加时间:2023/4/3 12:59:00