试题与答案

已知氧的沸点是-183℃,氮的沸点是-196℃,氦的沸点是-268℃。利用液化空

题型:选择题

题目:

已知氧的沸点是-183℃,氮的沸点是-196℃,氦的沸点是-268℃。利用液化空气提取这些气体,当温度升高,液态空气蒸发时,首先分离出来的气体是[ ]

A、氧

B、氮

C、氦

D、不能分离这些气体

答案:

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男性,28岁。车祸伤致骶髂部疼痛1小时来院急诊。查体:T36.5℃,P110次/分,R22次/分,BP85/60mmHg。神志清楚,表情淡漠,口唇苍白。头颅、胸、腹部检查无异常发现。肛指检查阴性,肛门括约肌收缩有力。右侧腹股沟和骶髂关节处压痛,骨盆挤压分离试验阳性。双下肢感觉、运动、血运均正常。

目前应该考虑的诊断包括()

A.骨盆骨折,Tile分型A型

B.骨盆骨折,Tile分型B型

C.骨盆骨折,Tile分型C型

D.失血性休克,重度

E.失血性休克,中度

F.失血性休克,轻度

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