某男，20岁，右上臂撞伤中下段成角畸形，伤后腕关节不能主动背伸，各掌指关节不能主动伸直，除考虑肱骨干中下段骨折外，还应首先考虑何种各并伤？（）

A.臂丛神经损伤

B.肌皮神经损伤

C.正中神经损伤

D.桡神经损伤

E.尺神经损伤

The theory _____ by Einstein was later to prove true, but at that time few people could accept it .

A．put out

B．put together

C．put aside

D．put forward