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【单选题】
患有“脚气病”的人可能是体内缺乏A.
维生素A
B.
维生素B 1
C.
维生素B 2
D.
维生素D
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反馈参考答案：
举一反三
【单选题】某患者，女性，73岁。为缓解疼痛症状自行服用了大量吗啡片剂，结果出现了呼吸抑制、昏迷等急性中毒症状。下列药物中，属于阿片类药物拮抗剂的是（）
A.
纳洛酮
B.
氟马西尼
C.
毒扁豆碱
D.
苯巴比妥
E.
硫代硫酸钠
【单选题】These people living in this area are still ________ their traditions which give their life meaning and help them in answering many questions.
A.
holding up
B.
clinging on
C.
clinging to
D.
holding in
【单选题】These people living in this area are still ____ their traditions which give their life meaning and help them in answering many questions.
A.
appealing to
B.
applying to
C.
clinging to
D.
objecting to
【简答题】在网络层次结构模型中都行,N层是N-1层的____,同时又是N+1层的____。对N层而言,N+1用户直接获得了N层提供的____。
【简答题】These people living in this area are still cling _______ their traditions which give their life meaning and help them in answerng many questions.
【简答题】消除速率常数
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