噪声引起的暂时性听阈位移有何特点？
题型：问答题 论述题
问题：
噪声引起的暂时性听阈位移有何特点？
题型：问答题 论述题
根据对话内容，在空白处填写恰当的单词，使对话完整、通顺。
A: What do people usually do on Chinese New Year, Lingling?
B: Well, most people buy (1) and give them to others.
A: That's great. I love getting presents. 
Can I (2) the present I receive right at the time?
B: I'm afraid you must wait! In China, you are 
not (3) to open the present at once. You must wait and open it (4) . And you must receive it with both hands.
A: Really? That's interesting. (5) in Britain, we can use one hand to receive the present. Thanks for telling me so much.
B: My pleasure.