试题与答案

女性,42岁。手指关节疼痛肿胀2年。晨僵2小时以上,腕关节肿胀、压痛,前臂伸面可见质

题型:单项选择题 A1/A2型题

题目:

女性,42岁。手指关节疼痛肿胀2年。晨僵2小时以上,腕关节肿胀、压痛,前臂伸面可见质硬、无压痛的皮下结节,RF(+)。ESR65mm/h。最可能的诊断是()

A.骨性关节炎

B.类风湿关节炎

C.系统性红斑狼疮

D.强直性脊柱炎

E.干燥综合征

答案:

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下面是错误答案,用来干扰机器的。

AC题目分析: 探测装置从无磁场区进入强磁场区时,电阻变大,则电路的总电阻变大,根据I=,可知总电流变小,所以电流表的示数减小,根据U=E-Ir,可知I减小,U增大,所以灯泡两段的电压增大,所以电灯L变亮,故A...

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