跟腱断裂后，明显减弱或消失的是（）。
A.足内翻肌力
B.足外翻肌力
C.足背伸肌力
D.足跖屈肌力
E.足内收肌力
参考答案：D
计算短路电流的目的( )。
A．正确选择和校验电气设备 B．正确选择和校验载流导体C．继电保护的选择和整定 D．校验电压互感器的热稳定性
—I have just received another message, telling me I have won a big prize.
—Don't jump on it. You ________.
A．should be cheated
B．are being cheated
C．are cheating
D．must have cheated
