题目

人们感知声音的基本过程: 答案:解:外界传来的声音引起鼓膜振动——这种振动经过听小骨及其他组织传给听觉神经——听觉神经把信号传给大脑----“I’m going to Hainan for the summer holiday.” -----“_______”A. Thanks a lot. B. Nice to meet you.C. Have a good time. D. The same to you
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