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问题 单项选择题

男，14岁，偶然发现双膝部肿块1天，双膝关节摄片如图，最可能的诊断是（）

A.骨瘤

B.骨软骨瘤

C.局限性骨皮质增厚

D.软骨肉瘤

E.以上均不正确

答案

参考答案：B

选择题

______ they live in the same house, we would no trouble finding them.

---But as traveling salesmen as well as seasonal herdsmen and farmhands, as you know, they move house _______ many of the Americans who live on wheels.

A．As far as; as often as

B．As well as; as well as

C．As long as;;as often as 　　　

D．As long as ; as far as
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单项选择题

原发性肺结核病的肺内原发病灶常位于

A．肺尖

B．肺上叶下部或下叶上部靠胸膜处

C．肺门

D．肺膈面

E．胸膜面
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