软组织损伤包括()
A.皮肤和筋膜损伤
B.血管和神经损伤
C.关节囊和滑膜损伤
D.软骨和内脏损伤
E.韧带和肌腱损伤
参考答案:A, B, C, E
点C是线段AB的黄金分割点,若AB=5cm,则BC的长是( )。
()are used widely in the operation of warehouse and distribution center andform the basic handling device for a number of selection system.
A.Cranes
B.Conveyors
C.Forklifttruck
D.Pallets