检查听力频率是在125-8000HZ的 ,正常耳的听力是0-25分贝的。各个医院收费不一,140元到顶了,也可以人工检测,音叉检测,30元到顶
1.Professor Jennings taught them English in 1990.
2.Tom had a wonderful time in xi'an.
3.Mary found her keys in her bedroom_
4.Xiao Wang's parents lived in Shanghai ten years ago.
5.Jane went to the Great wall two or three times.
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