咽及食管开放性损伤可出现() ["A.咳嗽及咯血、呼吸困难、气肿、局部疼痛","B.疼痛、吐血或呕血、气肿","C.颈部血肿、神经受压、脑缺血等","D.空气逸出、刺激性咳嗽、呼吸困难","E.吞咽痛、吐血、呕血、皮下气肿、颈部可见食物及唾液溢出"]
一个人双眼最好矫正视力<O.3,但≥O.05()双眼最好矫正视力<O.05()只有一眼矫正视力<O.05,但另一眼≥O.05()只有一眼矫正视力<O.3,但≥0.05,但另一眼≥O.3() ["A.双眼盲","B.双眼低视力","C.单眼盲","D.单眼低视力","E.仍属正常视力"]
气管开放性损伤可出现() ["A.咳嗽及咯血、呼吸困难、气肿、局部疼痛","B.疼痛、吐血或呕血、气肿","C.颈部血肿、神经受压、脑缺血等","D.空气逸出、刺激性咳嗽、呼吸困难","E.吞咽痛、吐血、呕血、皮下气肿、颈部可见食物及唾液溢出"]
颈动脉创伤性栓塞最可靠的诊断方法是() ["A.CT检查","B.X线检查","C.B超检查","D.MRI检查","E.DSA检查"]
咽及食管闭合性损伤可出现() ["A.咳嗽及咯血、呼吸困难、气肿、局部疼痛","B.疼痛、吐血或呕血、气肿","C.颈部血肿、神经受压、脑缺血等","D.空气逸出、刺激性咳嗽、呼吸困难","E.吞咽痛、吐血、呕血、皮下气肿、颈部可见食物及唾液溢出"]
阅读距离较一般眼镜式助视器远,便于写字或操作()视野大,携带方便,使用时不需手来扶持()放大倍数高,视野大,可调解对比度和亮度,体位不受限()是一种凸透镜,使视网膜成像放大()