第5题: [单项选择]脊髓损伤急性期康复治疗,正确的是() A. 患者生命体征和病情基本平稳,脊柱稳定即可开始康复训练 B. 康复治疗目的是早日恢复生活自理和步行功能 C. 急性期采取床边训练和佩戴腰围的步行训练 D. 伤后/术后即可佩戴腰围开始坐起训练 E. 颈髓损伤呼吸肌麻痹的患者训练其加强胸式呼吸运动,咳嗽、咳痰 参考答案:A
A. They are taking the place of high-flying jets. B. They are used for rescue work only. C. They have been widely used for various purposes. D. They are now used for commercial purposes. 参考答案:C 答案解析:最后一段整段都用来说明直升飞机的用途,可见其用途之广。因此,正确答案是C项。