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【单选题】
患者,女性,52岁,手足关节痛3年余,查体双手指间肌肉萎缩,手指向尺侧偏,X线显示关节腔变窄,关节半脱位,抗“O”抗体300U,血沉380mm/h,此患者最可能的诊断是
A.
退行性骨关节病
B.
类风湿关节炎
C.
先天性关节畸形
D.
风湿性关节炎
E.
系统性红斑狼疮
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参考答案:
举一反三
【单选题】在一电压恒定的直流电路中,电阻值增大时,电流()
A.
不变
B.
增大
C.
减小
D.
变化不定
【单选题】ZD6-D型转辙机采用直流串激式电动机,它的 额定电流为 ( ) 。
A.
2A
B.
3A
C.
4A
D.
5A
【单选题】听力原文: Prison service staff here in Britain has been severely criticized in an official report for escape of five Iraqi prisoners and an armed robber from Whitewall Prison in Kenbershire. Bomb-making e...
A.
6
B.
5
C.
1
D.
7
【单选题】National Health Service in Britain is only free for _________.
A.
the British people
B.
the British students
C.
overseas students
D.
the British adults
【单选题】听力原文: Prison service staff in Britain have been severely criticized in an official report for the escape of five IRA prisoners and an armed robber from White mall Prison, Cambridge shire. Bomb-making ...
A.
6.
B.
5.
C.
1.
D.
7.
【单选题】---I’m going to Britain? ---How long _________ you _______ in Britain?
A.
did; stay
B.
are; staying
C.
have; stayed
D.
are; stayed
【简答题】ZD6-A型电动转辙机的额定负载、额定直流电压、动作电流、转换时间、动作杆动程、表示杆动程、主锁闭力应符合哪些要求?
【单选题】听力原文:Thank you for calling the Britain information service. If you'd like information about train times, please press 1. If you' d like to book a ticket, please press 2. If you want information about ...
A.
An engineering company
B.
A telephone company
C.
A railway company
D.
A cinema
【单选题】在一电压恒定的直流电路中,电阻值增大时,电流( )。
A.
减小
B.
增大
C.
不变
D.
变化不定
【多选题】下列属于ZD6型电动转辙机的技术参数的是()。
A.
额定电压160VDC
B.
工作电流小于2A
C.
摩擦电流2.3-2.9A
D.
额定电压220VAC
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