题目内容
女性，24岁。5小时前骤起腹泻，稀便转水样便，排便15次，量多，呕吐3—4次来诊。无发热、腹痛。病前在舟山旅游。体检：脉搏102次／min，BP8／5．3 kPa(60／40 mmHg)，眼球稍下陷，腹部无压痛，大便光镜检：WBC 0～2／HP，RBC 0～1／Hp，拟诊为副霍乱。 霍乱与副霍乱的区别在于
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霍乱患者发生剧烈腹泻、呕吐的机制是
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Directions: In this section, you will hear 7 short conversations. At the end of each conversation, a question will be asked about what was said. Both the conversation and the question will be read only once. After each question, there will be a pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer.
Directions: In this section, you will hear 10 short pieces of news from BBC or VOA. After each news item and question, there will be a pause. During the pause, you must read the three choices marked A, B and C, and decide which is the best answer.
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