2、下列几种直径、长度均相同的金属丝，受力稍微弯曲，去掉外力后，哪种金属丝的形变接近于弹性形变？ The following kinds of wires with the same diameter and length are slightly bent under the force. After removing the external force, which kind of wire deformation is close to the elastic deformation？

2、下列几种直径、长度均相同的金属丝，受力稍微弯曲，去掉外力后，哪种金属丝的形变接近于弹性形变？ The following kinds of wires with the same diameter and length are slightly bent under the force. After removing the external force, which kind of wire deformation is close to the elastic deformation？

A．细钢丝 Fine steel wire

B．细铁丝 Fine iron wire

C．细铜丝 Fine copper wire

D．细铝丝 Fine aluminum wire