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【单选题】
The maps show how Northwood village and Peakside village have developed over three different periods, 1965, 1985 and the present day.A.
The maps show how two villages have developed over three different periods.
B.
The maps illustrate the changes that have occurred in two villages, Northwood and Peakside, over a roughly 50 year period.
C.
The maps illustrate the changes that have occured in two villages, Northwood and Peakside, from 1965 to the present.
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举一反三
【单选题】护士在教维生素D缺乏性手足搐搦症的患儿家长惊厥、喉痉挛发作时的处理方法，下列哪项不妥
A.
立即使患儿平卧
B.
松开患儿衣领
C.
颈部伸直，头后仰
D.
摇晃患儿，以促其清醒
E.
呼叫医护人员
【简答题】技术是为保证计算机系统的安全而设计与配置的一种能够及时发现并_________。
【单选题】维生素 D缺乏性手足搐搦症发生惊厥、喉痉挛的直接原因是由于血清中
A.
钠离子浓度降低
B.
钾离子浓度降低
C.
氯离子浓度降低
D.
钙离子浓度降低
E.
磷离子浓度降低
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