I passed by the sports field the other day, __ there was a football match going on then.

A．that

B．where

C．which

D．when

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