外力干扰过大使身体晃动增加,重心超出其稳定极限时,人体保持平衡采用的是:
A. 踝关节模式
B. 膝关节模式
C. 髋关节模式
D. 跨步动作
E. 下肢稳定
脊楚型颈椎病牵引采用后伸
A. 10 °-15°
B. 15°-20°
C. 20°~30°
D. 30°-45°
E. 20°-25°
By which of the following access technology, bandwidth is not shared among the users?
A. WiFi
B. HFC
C. ADSL
D. None of the above
The full text in English of FTTH is Fiber To The Home. The full text in English of ISP is ____. The full text in English of TDM is ____.