男，23岁，下腰及左腿痛3个月加重1周，查体左直腿抬高试验40°(+)，加强试验(+)，左拇趾背伸肌力减弱，X线平片示腰椎曲度变直，骶椎裂。
依据病史体征及X线检查，应考虑

The writer wants to change her job because（）.

A．she has difficulty handling her daily work efficiently
B．she can hardly get a chance to be promoted
C．she finds her present job too challenging
D．she is tired of her duties at the college

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男性，63岁，因前列腺增生，排尿困难，要求手术治疗。在前列腺手术中，下述哪一种情况不是绝对手术指征

A.反复的尿潴留
B．伴有膀胱结石
C．膀胱残余尿＞50ml
D．前列腺明显增大
E．伴有肾积水

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