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【单选题】
,男,15岁。因高热、 左膝部剧痛肿胀3天入院。体检:左大腿下端明显肿胀,压痛阳性,局部增高,行局部分层穿刺,在骨膜下抽出淡黄色浑浊液体。应用大剂量抗生素治疗3天仍不见好转。该病人最可能的诊断是A.
膝关节类风湿关节炎
B.
左股骨慢性血源性骨髓炎
C.
膝关节关节结核
D.
左股骨急性血源性骨髓炎
E.
左膝关节化脓性关节炎
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举一反三
【单选题】How does the Biofilter Method process sewage？
A.
By causing growth of bacteria in the sewage
B.
By utilizing a biological film
C.
By treating organic matter in biochemical oxidation
D.
All of the above
【单选题】Dump sewage into oceans and rivers is a serious form of pollution.
A.
Having dumped sewage
B.
Being dumped sewage
C.
Dumped sewage
D.
Dumping sewage
【单选题】In sewage treatment, the term maceration refers to the process of ______.
A.
breaking up solid matter into fine particles
B.
precipitating non-decomposed waste in a collection tank
C.
chemically adjusting the sewage ph to 7.0
D.
eliminating bacterium coli from the sewage
【判断题】幻灯片主题是指PowerPoint 2016提供的颜色、字体和效果搭配的模板,应用这些主题模板,可以快速美化幻灯片的版式,使演示文稿中各幻灯片拥有统一的风格。
A.
正确
B.
错误
【单选题】____ are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
A.
anaerobic bacteria
B.
aerobic bacteria
C.
air bubbles
D.
disinfection chemicals
【简答题】The processing of sewage(污水) requires considerable amounts of electricity. Many sewage treatment plants in the U.S. have become self-sufficient by using the methane gas (沼气)given off by sewage.
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