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问题描述：

[单选] “就在我被俘的那一天——一个最不幸的日子，有两个国方兵士，在树林中发现了我。”这句话中破折号的作用是（）。
A．表示解释说明 B．表示话未说完 C．表示声音拉长
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一名15岁女孩表现出瘀伤，鼻epi和重度期。 她最近从病毒感染中康复。 身体检查不明显。 什么是最合适的初步调查？ A 15-year-old girl presents with bruising， epistaxis and heavy periods． She has recently recovered from a viral infection． Physical examination is unremarkable． What is the most appropriate initial investigation？
您是一名进行普通外科手术的内务官员，正在一名65岁的男子的职员中工作，该男子被选择性地接受腹股沟疝修补术。 他过去的病史包括慢性阻塞性肺疾病（COPD）。 他说他已经在6周前做了胸部X光检查。 在手术前，强烈建议您进行以下哪项检查？ You are a house officer in general surgery and are clerking in a 65-year-old man who is being admitted electively for an inguinal hernia repair． His past medical history includes chronic obstructive pulmonary disease （COPD）． He states he has had a chest X-ray over 6 weeks ago． Which investigation is most highly recommended prior to his surgery？
您是进行结直肠手术的房屋管理员，正在一名68岁的男子的干事中，该男子计划在下周进行前切除术。 他过去的病史包括缺血性心脏病，但无心肌梗塞病史。 建议在他手术之前进行以下检查，除了？ You are a house officer in colorectal surgery and are clerking in a 68-year-old man who is planned for an anterior resection the following week． His past medical history includes ischaemic heart disease but no history of a myocardial infarction． The following investigations are all recommended prior to his surgery EXCEPT？
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