第18题: [单项选择]{{B}}Conversation 1{{/B}} A. Because she was worried about the birthday party. B. Because she found this history course very challenging. C. Because she thought her term paper might be late. D. Because she had a very hard time sleeping. 参考答案:C 答案解析:[听力原文]
Why was Jane nervous
第29题: [单项选择]为某患者冲洗泪道时有阻力,且冲洗液部分自泪小点返回,部分流入鼻腔,提示() A. 泪道通畅 B. 鼻泪管狭窄 C. 泪小管阻塞 D. 泪总管阻塞 E. 以上均不是 参考答案:B 答案解析:应掌握泪道冲洗结果及其分析。其结果有以下几种:①正常者注入冲洗液时无阻力,冲洗液通畅地流入鼻腔或咽部;②注入冲洗液时有阻力,部分冲洗液自沮小点返回,部分流入鼻腔,为鼻泪管狭窄;③冲洗液完全从注入的原路