第7题: [单项选择]听力损失为41~55dB是()。 A. 轻度聋 B. 中度聋 C. 中重度聋 D. 重度聋 E. 极度聋 参考答案:B 答案解析:国际通用的耳聋分级为国际标准化组织1964年公布的标准,世界卫生组织1980年亦推出类似标准。以500Hz、1000Hz和2000Hz的平均听阈为准,听力损失26~40dB为轻度聋,41~55dB、5
第13题: [单项选择]When helping a victim,what would a good first aider not do() A. Give him immediate care. B. Reassure him that help is at hand. C. Make him as comfortable as possible. D. Move all parts of the victim’s body to find the injuries. 参考答案:D
A. teaching B. scientific research C. field work D. investigation 参考答案:A 答案解析:[分析] 词汇题。第四段中,作者建议"The title of professor should be given to those who profess,”在此句之前,作者强调了教学与科研相结合,