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男性，50岁。间歇性跛行1年，加重1个月就诊。无外伤史，无烟酒嗜好。

体格检查最可能发现的是（）

A.双侧直腿抬高试验阳性

B.足背动脉搏动明显减弱

C.双下肢活动功能受限

D.腰臀部有明显压痛点

E.腰腿部无明显阳性体征

答案

参考答案：E

单项选择题

Why is（）fun What delights may its practitioner expect as his reward First is the sheer joy of making things. As the child delights in his mud pie, so the adult enjoys building things, especially things of his own design. Second is the pleasure of making things that are useful to other people. Third is the fascination of fashioning complex puzzle-like objects of interlocking moving parts and watching them work in subtle cycles, playing out the consequences of principles built in from the beginning. Fourth is the joy of always learning, which springs from the（）nature of the task. In one way or another the problem is ever new, and its solver learns something: sometimes （）, sometimes theoretical, and sometimes both. Finally, there is the delight of working in such a tractable medium. The（）, like the poet, works only slightly removed from pure thought-stuff. Few media of creation are so flexible, so easy to polish and rework, so readily capable of realizing grand conceptual structures. Yet the program（）, unlike the poet’s words, is real in the sense that it moves and works, producing visible outputs separate from the construct itself. It prints results, draws pictures, produces sounds, moves arms. Programming then is fun because it gratifies creative longings built deep within us and delights sensibilities we have in common with all men.

Why is（）fun What delights may its practitioner expect as his reward First is the sheer joy of making things.

A．programming

B．composing

C．working

D．writing
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单项选择题

班主任在班级管理中领导影响力主要表现在两方面，一是职权影响力，二是（）

A．学术影响力

B．个性影响力

C．年龄影响力

D．职称影响力
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