【单选题】直流电机励磁有四种方式,励磁线圈和定子线圈没有电流关系的是( )。
【简答题】新方法用于鉴别维生素C,该新方法使用前需验证哪些指标?
【单选题】According to the passage, what is not true?
A.
when the civil war ended, the people of the USA bad many overwhelming tasks to do.
B.
Davis and other Southern leaders were finally released partly because Virginians were loyal to their leaders.
C.
The author mentions the popular song in the last paragraph to tell us Davis was famous then.
D.
Davis was chained in prison for two years.
【单选题】患儿,男性,8岁。右肘关节外伤,当地拍X线片诊断肱骨髁上骨折,经两次手法复位未成功,来院时为伤后48小时。查体:右肘关节半屈位,肿胀较重,压痛明显,手指活动障碍,桡动脉搏动弱,手指凉,麻木。应考虑为肱骨髁上骨折合并
【简答题】在安装硬件之前,必须消除身体所带____。
【单选题】患儿,男性,8岁。右肘关节外伤,当地拍X线片诊断肽骨棵上骨折,经两次手法复位未成功,来院时为伤后48小时。查体右肘关节半屈位,肿胀较重,压痛明显,手指活动障碍,侥动脉搏动弱,手指凉,麻木。应考虑为肽骨棵上骨折合并
【单选题】患儿,男性, 8 岁。右肘关节外伤,当地拍 X 线片诊断 肱骨髁上骨折,经两次手法复位未成功,来院时为伤 后 48 小时,查体右射关节半屈位,肿胀较重,压痛明 显,手指活动障碍,桡动脉搏动弱,手指凉,麻木,应考 虑为肱骨髁上骨折合并
【单选题】患儿,男性,8岁。右肘关节外伤,当地拍x线片诊断肱骨踝上骨折,经两次手法复位未成功,来院时为伤后48小时,查体右肘关节半屈位,肿胀较重,压痛明显,手指活动障碍,桡动脉搏动弱,手指凉,麻木,应考虑为肱骨踝上骨折合并