()多数发生在绳索移动量不大、吊具较重、拉力变化较小的场合。
A、粘性磨损
B、外部磨损
C、单纯磨损
D、偏心磨损
参考答案:D
男,38岁,右髋部疼痛、肿胀,质较硬,结合图像,最可能的诊断是()
A.骨肉瘤
B.软骨瘤
C.软骨肉瘤
D.骨软骨瘤
E.骨转移瘤
--Could you tell me how I can get to the nearest park?
--______ down this street and turn left ______ the second crossing.
A.Go; in
B.Go; at
C.Going; on
D.To go; of