网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
在某社区开展的糖尿病普查中，有75%的糖尿病患者的空腹血糖试验阳性，试问该值所反映的是空腹血糖试验的( )
A
灵敏度
B
特异度
C
假阳性率
D
真阴性率
参考答案
参考解析
解析：
[解析] 灵敏度又称真阳性率，即实际有病而按该筛检试验的标准被正确地判为有病的百分比。它反映筛检试验发现病人的能力。
更多 “单选题在某社区开展的糖尿病普查中，有75%的糖尿病患者的空腹血糖试验阳性，试问该值所反映的是空腹血糖试验的( )A 灵敏度B 特异度C 假阳性率D 真阴性率” 相关考题
考题
单选题以下关于人体主要关节活动范围的描述错误的是：（）A
肩关节外展80°～90°B
肘关节屈曲135°～150°C
髋关节屈曲130°～140°D
膝关节屈曲130°～140°E
脊柱颈椎前屈35°～50°
考题
单选题弥漫性膜性增生性肾小球肾炎时，增生的细胞主要是（）。A
肾小球脏层细胞和中性粒细胞B
肾小球壁层细胞和系膜细胞C
肾小球系膜细胞和基质D
肾小球毛细血管基底增厚和系膜细胞增生E
肾小球各种细胞均有较明显增生
考题
单选题患者女，32岁，甲状旁腺功能异常，检查血清钙离子浓度为1.6mmol/L。该患者不会出现的表现是：（）A
手足抽搐B
易激动C
腱反射亢进D
Chvostek征阳性E
Grey-Turner征阳性
考题
问答题Practice 1 Are you a real grump (脾气坏的人) in the mornings? Do you wake up every day feeling tired, angry and upset, and all too ready to flit the snooze (瞌睡) button? If so, then a new alarm clock could be just for you. The clock, called SleepSmart, measures your sleep cycle, and waits for you to be in your lightest phase of sleep before waking you up, Its makers say that should ensure you wake up feeling refreshed (恢复精力) every morning. As you sleep you pass through a sequence of sleep states—light sleep, deep sleep and REM sleep (快速眼动睡眼)—that repeats approximately every 90 minutes. The points in that cycle at which you wake can affect how you feel later, and may even have a greater impact than how long or little you have slept. Being wakened during a light phase means you are more likely to wake up cheerful and full of life and interest. SleepSmart records the distinct pattern of brain waves produced during each phase of sleep, via a headband equipped with electrodes (电极) and a microprocessor. This measures electric activity of the wearer’s brain, and communicates wirelessly with a clock unit near the bed. You program the clock with the latest time at which you want to be wakened, and it then at the proper time wakes you during the last light sleep phase before that. The concept was invented by a group of students at Brown University in Rhode Island after a friend complained of waking up tired and performing poorly on a test. “As sleep-deprived (剥夺) people ourselves, we started thinking of what to do about it,” says Eric Shashoua, a recent college graduate and now chief executive officer of Axon Sleep Research Laboratories, a company created by the students to develop their idea. They have almost finished a prototype and plan to market the product by next year.
考题
单选题男，50岁，间断性腹泻20余年，加重3个月，大便每日4～5次，不成形，近日纳差，体重明显减轻，化验便隐血阳性，确诊的最佳手段为：（）A
便找癌细胞B
血液生化C
结肠镜检查D
腹部CT检查E
腹部超声检查
考题
单选题The investigations into the air disaster would have been completed, but new facts have now been _____ by the injured pilot.A
exposedB
revealedC
confessedD
admitted
考题
单选题女62岁。因脑梗死住院20天。既往无慢性肺部疾病史。突发呼吸困难1小时，查体：BP150/80mmHg，呼吸急促，口唇发绀，三凹征明显，肺部可闻及哮鸣音，双肺呼吸音减弱。该患者呼吸困难最可能的原因是：（）A
支气管哮喘B
急性左心衰C
急性心肌梗死D
自发性气胸E
气管异物
考题
单选题_____ turn up late at the meeting, he _____ forgot his relevant documents.A
Not only did he; alsoB
No sooner did he; thanC
As soon as he did;D
As long as he did; never
考题
单选题В чём главная причина большой популярности мюзикла?A
Билеты на это шоу стоят не очень дорого.B
Это один из самых дорогих мюзиклов в мире.C
В этом мюзикле участвуют одни известные актёры.D
Это отличное шоу поставлено на «вечный сюжет» — тему любви.
考题
单选题化学治疗用药护理下列正确的一项为：（）A
药物仔细核对并配好后以备用B
注意保护静脉，从远端开始穿刺C
一旦发现外漏立即热敷促进吸收D
用化学治疗药物直接穿刺，穿刺应准确E
化学治疗药物均用5%葡萄糖溶解稀释
考题
单选题下列表述，正确的一句是（ ）。A
命令可以用来宣布和施行强制性行政措施B
命令可以用来宣布强制性行政措施，但不可以用来施行C
命令可以用来施行强制性行政措施，但不可以用来宣布D
命令不可以用来宣布和施行强制性行政措施
考题
多选题呼吸道梗阻的常见原因有（）。A气胸B麻醉装置不当C喉痉挛D下呼吸道阻塞E舌后坠
热门标签
最新试卷