关节脱位手术复位的适应症除何病以外都是()
A.关节囊和肌腱的骨端绞锁
B.有骨折等并发症
C.畸形明显
D.并发严重的神经血管损伤
E.开放性脱位
参考答案:C
However busy we are, we need to take exercise. Not only _____ us keep healthy, it also stops us getting fat. [ ]
A. it helps
B. helps it
C. it does help
D. does it help
【问题3】
该校园网内交换机数量较多,交换机间链路复杂,为了防止出现环路,需要在各交换机上运行()。