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| Who Is Deaf? | |
| 摘 要： | An old man thought his wife was a bit deaf and he decided to try her out. He stepped back 10 meters and asked his wife from behind, "Can you hear me?" He heard no answer from his wife, so he walked forward and stood 6 meters away from her. "Can you hear m… |
| 本文献已被 CNKI 等数据库收录！ | |