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人们在不同场合使用手机时需要选择不同的音量，改变音量是改变了声音的____；当你接听电话时，一般能够知道对方是熟人还是陌生人，这是根据声音的_____进行判断的．（填“音调”、“音色”或“响度”）
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人们在不同场合使用手机时需要选择不同的音量，改变音量是改变了声音的____；当你接听电话时，一般能够知道对方是熟人还是陌生人，这是根据声音的_____进行判断的．（填“音调”、“音色”或“响度”）
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1. It's reported that an(n) _________________(飞机场) will be built in Shiyan soon.
2.If you try your best now, you are sure to have a chance of __________(实现) your dream.
3.He was glad to have an excuse ____________(推迟) telling her the news.
4.It's raining heavily and you should drive _______________(更加小心), or it may be dangerous.
5.In the past two years, the bad living environment they were used to ______________(改善)a lot. They have bigger and brighter houses.
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