腘绳肌完全撕伤的少见并发症是()

A．膝屈曲挛缩

B．膝伸展挛缩

C．足下垂

D．股四头肌肌力不足步态

E．划圈步态

If things are going badly, the optimist acts quickly, looking for （） and forming a new plan of action.

A.result

B.solutions

C.response

D.settlement