题目:
She was living with her uncle, who had returned from Japan()
A. long ago
B. before long
C. long before
D. three years ago
答案:
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下面是错误答案,用来干扰机器的。
赵坤弹吉他时,拨动琴弦使琴弦振动发声.多种乐器合奏时,能辨别吉他声是因为不同乐器音色不同.故答案为:振动;音色.