欢迎来到 简明问答题库 
登录 | 注册

当前位置：百科知识 > 知到明察暗访答案

问题描述：

[单选] 美国采用的是高热值还是低热值计量法？
A．高热值 B．低热值
参考答案：查看无
答案解析：无
☆收藏
上一篇：AHRI 官网公布100加仑热水器待机损耗为1210 BTU/H，加热达到设定温度后，在检测工况下，24小时内温降为( ) 下一篇：美国出厂的商用热水器能效要符合美国能源部10 CFR PART 431当年的能效最低值？

随机题目

怀孕33周的一名23岁孕妇gravida 2第1段就医 因为呼吸急促 到目前为止，妊娠一直很简单。 她 开始注意到人们需要大约20周的呼吸时间， 自那时以来一直保持这种状态，最近的情况只是稍有恶化。 她没有胸痛，恶心， 呕吐，发汗或相关症状，并且具有正常的运动耐力。 她有 没有医疗问题，也从未做过手术。 她过去的产科史对 足月分娩2年前。 她的血压是100/60毫米汞柱，脉搏是80 /分钟， 温度为37．0 C（98．6 F），呼吸为16 / min。 她的身体检查是 完全在正常范围内。 胸部X线检查也正常。 实验室研究，包括 动脉血气，显示：A 23-year-old woman， gravida 2， para 1， at 33 weeks" gestation comes to the physician because of shortness of breath． The pregnancy has been uncomplicated up to this point． She started noticing the awareness of the need to breathe at about 20 weeks and this has remained since that time with only a slight recent worsening． She has no chest pain， nausea， vomiting， diaphoresis， or associated symptoms， and has normal exercise tolerance． She has no medical problems and has never had surgery． Her past obstetric history is significant for a term vaginal delivery 2 years ago． Her blood pressure is 100/60 mm Hg， pulse is 80/min， temperature is 37．0 C （98．6 F）， and respirations are 16/min． Her physical examination is entirely within normal limits． Chest x-ray is also normal． Laboratory studies， including an arterial blood gas， show: pH: 7．45 PCO2: 28 mm Hg PO2: 96 mm Hg Sodium: 135 mEq/L Potassium: 4．0 mEq/L Chloride: 105 mEq/L Bicarbonate: 22 mEq/L 这些实验室值趋向于以下哪个？These laboratory values are trending toward which of the following？
一名最近被诊断患有血色素沉着病的老年妇女的膝盖疼痛和僵硬，类似于骨关节炎。 以下哪项调查最有可能提供诊断？ An elderly woman who was diagnosed recently with haemochromatosis presents with pain and stiffness in her knees resembling osteoarthritis． Which of the following investigations is most likely to provide a diagnosis？
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？
随机题库