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问题 单项选择题 A1/A2型题

以下哪一项不是感染性心内膜炎的周围体征（）

A.瘀点

B.心脏杂音

C.Roth斑

D.Osler结

E.Janeway损害

答案

参考答案：B

解析：心脏杂音不属于周围体征。

单项选择题

Are the following two statements about fiscal policy correct Statement 1: The crowding out effect reduces the multiplier effect of expansionary fiscal policy but does not affect economic growth. Statement 2: A generational imbalance exists if the present value of government benefits to the current generation is not fully paid for by taxes on the current generation. Statement 1 Statement 2（）①A. Correct Correct ②B. Correct Incorrect ③C. Incorrect Correct

A. ①

B. ②

C. ③
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单项选择题 案例分析题

患者，女，39岁。右膝外上方酸痛半年，逐渐加重，膝关节屈伸活动好。X线平片提示右股骨下端外侧有一膨胀性病灶，边缘清楚，远端距关节面不足1cm，无明显骨膜反应。

首先考虑的诊断为（）

A.骨髓炎

B.骨结核

C.骨肉瘤

D.骨巨细胞瘤

E.骨囊肿
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