单选题_____AvoicesBsoundsCpronunciationDgestures
单选题
_____
A
voices
B
sounds
C
pronunciation
D
gestures
参考解析
解析：
voice指嗓音，尤指人的说话声、歌声、笑声，此处指老师上课的音调。
voice指嗓音，尤指人的说话声、歌声、笑声，此处指老师上课的音调。
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